diff --git a/Pipfile.lock b/Pipfile.lock
index 4cffc58..d4c54a0 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -18,10 +18,10 @@
     "default": {
         "attrs": {
             "hashes": [
-                "sha256:69c0dbf2ed392de1cb5ec704444b08a5ef81680a61cb899dc08127123af36a79",
-                "sha256:f0b870f674851ecbfbbbd364d6b5cbdff9dcedbc7f3f5e18a6891057f21fe399"
+                "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c",
+                "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"
             ],
-            "version": "==19.1.0"
+            "version": "==19.3.0"
         },
         "backcall": {
             "hashes": [
@@ -32,25 +32,18 @@
         },
         "bleach": {
             "hashes": [
-                "sha256:213336e49e102af26d9cde77dd2d0397afabc5a6bf2fed985dc35b5d1e285a16",
-                "sha256:3fdf7f77adcf649c9911387df51254b813185e32b2c6619f690b593a617e19fa"
+                "sha256:44f69771e2ac81ff30d929d485b7f9919f3ad6d019b6b20c74f3b8687c3f70df",
+                "sha256:aa8b870d0f46965bac2c073a93444636b0e1ca74e9777e34f03dd494b8a59d48"
             ],
-            "version": "==3.1.0"
-        },
-        "colorama": {
-            "hashes": [
-                "sha256:05eed71e2e327246ad6b38c540c4a3117230b19679b875190486ddd2d721422d",
-                "sha256:f8ac84de7840f5b9c4e3347b3c1eaa50f7e49c2b07596221daec5edaabbd7c48"
-            ],
-            "markers": "sys_platform == 'win32'",
-            "version": "==0.4.1"
+            "index": "pypi",
+            "version": "==3.1.1"
         },
         "decorator": {
             "hashes": [
-                "sha256:86156361c50488b84a3f148056ea716ca587df2f0de1d34750d35c21312725de",
-                "sha256:f069f3a01830ca754ba5258fde2278454a0b5b79e0d7f5c13b3b97e57d4acff6"
+                "sha256:54c38050039232e1db4ad7375cfce6748d7b41c29e95a081c8a6d2c30364a2ce",
+                "sha256:5d19b92a3c8f7f101c8dd86afd86b0f061a8ce4540ab8cd401fa2542756bce6d"
             ],
-            "version": "==4.4.0"
+            "version": "==4.4.1"
         },
         "defusedxml": {
             "hashes": [
@@ -66,20 +59,28 @@
             ],
             "version": "==0.3"
         },
+        "importlib-metadata": {
+            "hashes": [
+                "sha256:06f5b3a99029c7134207dd882428a66992a9de2bef7c2b699b5641f9886c3302",
+                "sha256:b97607a1a18a5100839aec1dc26a1ea17ee0d93b20b0f008d80a5a050afb200b"
+            ],
+            "markers": "python_version < '3.8'",
+            "version": "==1.5.0"
+        },
         "ipykernel": {
             "hashes": [
-                "sha256:346189536b88859937b5f4848a6fd85d1ad0729f01724a411de5cae9b618819c",
-                "sha256:f0e962052718068ad3b1d8bcc703794660858f58803c3798628817f492a8769c"
+                "sha256:7f1f01df22f1229c8879501057877ccaf92a3b01c1d00db708aad5003e5f9238",
+                "sha256:ba8c9e5561f3223fb47ce06ad7925cb9444337ac367341c0c520ffb68ea6d120"
             ],
-            "version": "==5.1.1"
+            "version": "==5.1.4"
         },
         "ipython": {
             "hashes": [
-                "sha256:11067ab11d98b1e6c7f0993506f7a5f8a91af420f7e82be6575fcb7a6ca372a0",
-                "sha256:60bc55c2c1d287161191cc2469e73c116d9b634cff25fe214a43cba7cec94c79"
+                "sha256:d9459e7237e2e5858738ff9c3e26504b79899b58a6d49e574d352493d80684c6",
+                "sha256:f6689108b1734501d3b59c84427259fd5ac5141afe2e846cfa8598eb811886c9"
             ],
             "markers": "python_version >= '3.3'",
-            "version": "==7.6.1"
+            "version": "==7.12.0"
         },
         "ipython-genutils": {
             "hashes": [
@@ -90,31 +91,31 @@
         },
         "ipywidgets": {
             "hashes": [
-                "sha256:cb263c6974aca902d00a435711823bb4aaf6614a5f997f517e15fa84151e8fa2",
-                "sha256:eab6060f20f7f10d91f6efc8d33f9fd22133406980fcaee2738d836a910402f4"
+                "sha256:13ffeca438e0c0f91ae583dc22f50379b9d6b28390ac7be8b757140e9a771516",
+                "sha256:e945f6e02854a74994c596d9db83444a1850c01648f1574adf144fbbabe05c97"
             ],
-            "version": "==7.5.0"
+            "version": "==7.5.1"
         },
         "jedi": {
             "hashes": [
-                "sha256:49ccb782651bb6f7009810d17a3316f8867dde31654c750506970742e18b553d",
-                "sha256:79d0f6595f3846dffcbe667cc6dc821b96e5baa8add125176c31a3917eb19d58"
+                "sha256:b4f4052551025c6b0b0b193b29a6ff7bdb74c52450631206c262aef9f7159ad2",
+                "sha256:d5c871cb9360b414f981e7072c52c33258d598305280fef91c6cae34739d65d5"
             ],
-            "version": "==0.14.0"
+            "version": "==0.16.0"
         },
         "jinja2": {
             "hashes": [
-                "sha256:065c4f02ebe7f7cf559e49ee5a95fb800a9e4528727aec6f24402a5374c65013",
-                "sha256:14dd6caf1527abb21f08f86c784eac40853ba93edb79552aa1e4b8aef1b61c7b"
+                "sha256:93187ffbc7808079673ef52771baa950426fd664d3aad1d0fa3e95644360e250",
+                "sha256:b0eaf100007721b5c16c1fc1eecb87409464edc10469ddc9a22a27a99123be49"
             ],
-            "version": "==2.10.1"
+            "version": "==2.11.1"
         },
         "jsonschema": {
             "hashes": [
-                "sha256:0c0a81564f181de3212efa2d17de1910f8732fa1b71c42266d983cd74304e20d",
-                "sha256:a5f6559964a3851f59040d3b961de5e68e70971afb88ba519d27e6a039efff1a"
+                "sha256:4e5b3cf8216f577bee9ce139cbe72eca3ea4f292ec60928ff24758ce626cd163",
+                "sha256:c8a85b28d377cc7737e46e2d9f2b4f44ee3c0e1deac6bf46ddefc7187d30797a"
             ],
-            "version": "==3.0.1"
+            "version": "==3.2.0"
         },
         "jupyter": {
             "hashes": [
@@ -127,24 +128,24 @@
         },
         "jupyter-client": {
             "hashes": [
-                "sha256:b5f9cb06105c1d2d30719db5ffb3ea67da60919fb68deaefa583deccd8813551",
-                "sha256:c44411eb1463ed77548bc2d5ec0d744c9b81c4a542d9637c7a52824e2121b987"
+                "sha256:1fac6e3be1e797aea33d5cd1cfa568ff1ee71e01180bc89f64b24ee274f1f126",
+                "sha256:ed2490c65f7e0987d1e7b2c4146371d58112489e558b3a835aefb86b7283f930"
             ],
-            "version": "==5.2.4"
+            "version": "==6.0.0"
         },
         "jupyter-console": {
             "hashes": [
-                "sha256:308ce876354924fb6c540b41d5d6d08acfc946984bf0c97777c1ddcb42e0b2f5",
-                "sha256:cc80a97a5c389cbd30252ffb5ce7cefd4b66bde98219edd16bf5cb6f84bb3568"
+                "sha256:6f6ead433b0534909df789ea64f0a14cdf9b6b2360757756f08182be4b9e431b",
+                "sha256:b392155112ec86a329df03b225749a0fa903aa80811e8eda55796a40b5e470d8"
             ],
-            "version": "==6.0.0"
+            "version": "==6.1.0"
         },
         "jupyter-core": {
             "hashes": [
-                "sha256:2c6e7c1e9f2ac45b5c2ceea5730bc9008d92fe59d0725eac57b04c0edfba24f7",
-                "sha256:f4fa22d6cf25f34807c995f22d2923693575c70f02557bcbfbe59bd5ec8d8b84"
+                "sha256:394fd5dd787e7c8861741880bdf8a00ce39f95de5d18e579c74b882522219e7e",
+                "sha256:a4ee613c060fe5697d913416fc9d553599c05e4492d58fac1192c9a6844abb21"
             ],
-            "version": "==4.5.0"
+            "version": "==4.6.3"
         },
         "markupsafe": {
             "hashes": [
@@ -152,13 +153,16 @@
                 "sha256:09027a7803a62ca78792ad89403b1b7a73a01c8cb65909cd876f7fcebd79b161",
                 "sha256:09c4b7f37d6c648cb13f9230d847adf22f8171b1ccc4d5682398e77f40309235",
                 "sha256:1027c282dad077d0bae18be6794e6b6b8c91d58ed8a8d89a89d59693b9131db5",
+                "sha256:13d3144e1e340870b25e7b10b98d779608c02016d5184cfb9927a9f10c689f42",
                 "sha256:24982cc2533820871eba85ba648cd53d8623687ff11cbb805be4ff7b4c971aff",
                 "sha256:29872e92839765e546828bb7754a68c418d927cd064fd4708fab9fe9c8bb116b",
                 "sha256:43a55c2930bbc139570ac2452adf3d70cdbb3cfe5912c71cdce1c2c6bbd9c5d1",
                 "sha256:46c99d2de99945ec5cb54f23c8cd5689f6d7177305ebff350a58ce5f8de1669e",
                 "sha256:500d4957e52ddc3351cabf489e79c91c17f6e0899158447047588650b5e69183",
                 "sha256:535f6fc4d397c1563d08b88e485c3496cf5784e927af890fb3c3aac7f933ec66",
+                "sha256:596510de112c685489095da617b5bcbbac7dd6384aeebeda4df6025d0256a81b",
                 "sha256:62fe6c95e3ec8a7fad637b7f3d372c15ec1caa01ab47926cfdf7a75b40e0eac1",
+                "sha256:6788b695d50a51edb699cb55e35487e430fa21f1ed838122d722e0ff0ac5ba15",
                 "sha256:6dd73240d2af64df90aa7c4e7481e23825ea70af4b4922f8ede5b9e35f78a3b1",
                 "sha256:717ba8fe3ae9cc0006d7c451f0bb265ee07739daf76355d06366154ee68d221e",
                 "sha256:79855e1c5b8da654cf486b830bd42c06e8780cea587384cf6545b7d9ac013a0b",
@@ -175,7 +179,9 @@
                 "sha256:ba59edeaa2fc6114428f1637ffff42da1e311e29382d81b339c1817d37ec93c6",
                 "sha256:c8716a48d94b06bb3b2524c2b77e055fb313aeb4ea620c8dd03a105574ba704f",
                 "sha256:cd5df75523866410809ca100dc9681e301e3c27567cf498077e8551b6d20e42f",
-                "sha256:e249096428b3ae81b08327a63a485ad0878de3fb939049038579ac0ef61e17e7"
+                "sha256:cdb132fc825c38e1aeec2c8aa9338310d29d337bebbd7baa06889d09a60a1fa2",
+                "sha256:e249096428b3ae81b08327a63a485ad0878de3fb939049038579ac0ef61e17e7",
+                "sha256:e8313f01ba26fbbe36c7be1966a7b7424942f670f38e666995b88d012765b9be"
             ],
             "version": "==1.1.1"
         },
@@ -188,24 +194,24 @@
         },
         "nbconvert": {
             "hashes": [
-                "sha256:138381baa41d83584459b5cfecfc38c800ccf1f37d9ddd0bd440783346a4c39c",
-                "sha256:4a978548d8383f6b2cfca4a3b0543afb77bc7cb5a96e8b424337ab58c12da9bc"
+                "sha256:21fb48e700b43e82ba0e3142421a659d7739b65568cc832a13976a77be16b523",
+                "sha256:f0d6ec03875f96df45aa13e21fd9b8450c42d7e1830418cccc008c0df725fcee"
             ],
-            "version": "==5.5.0"
+            "version": "==5.6.1"
         },
         "nbformat": {
             "hashes": [
-                "sha256:b9a0dbdbd45bb034f4f8893cafd6f652ea08c8c1674ba83f2dc55d3955743b0b",
-                "sha256:f7494ef0df60766b7cabe0a3651556345a963b74dbc16bc7c18479041170d402"
+                "sha256:562de41fc7f4f481b79ab5d683279bf3a168858268d4387b489b7b02be0b324a",
+                "sha256:f4bbbd8089bd346488f00af4ce2efb7f8310a74b2058040d075895429924678c"
             ],
-            "version": "==4.4.0"
+            "version": "==5.0.4"
         },
         "notebook": {
             "hashes": [
-                "sha256:573e0ae650c5d76b18b6e564ba6d21bf321d00847de1d215b418acb64f056eb8",
-                "sha256:f64fa6624d2323fbef6210a621817d6505a45d0d4a9367f1843b20a38a4666ee"
+                "sha256:3edc616c684214292994a3af05eaea4cc043f6b4247d830f3a2f209fa7639a80",
+                "sha256:47a9092975c9e7965ada00b9a20f0cf637d001db60d241d479f53c0be117ad48"
             ],
-            "version": "==5.7.8"
+            "version": "==6.0.3"
         },
         "pandocfilters": {
             "hashes": [
@@ -215,10 +221,18 @@
         },
         "parso": {
             "hashes": [
-                "sha256:5052bb33be034cba784193e74b1cde6ebf29ae8b8c1e4ad94df0c4209bfc4826",
-                "sha256:db5881df1643bf3e66c097bfd8935cf03eae73f4cb61ae4433c9ea4fb6613446"
+                "sha256:56b2105a80e9c4df49de85e125feb6be69f49920e121406f15e7acde6c9dfc57",
+                "sha256:951af01f61e6dccd04159042a0706a31ad437864ec6e25d0d7a96a9fbb9b0095"
+            ],
+            "version": "==0.6.1"
+        },
+        "pexpect": {
+            "hashes": [
+                "sha256:0b48a55dcb3c05f3329815901ea4fc1537514d6ba867a152b581d69ae3710937",
+                "sha256:fc65a43959d153d0114afe13997d439c22823a27cefceb5ff35c2178c6784c0c"
             ],
-            "version": "==0.5.0"
+            "markers": "sys_platform != 'win32'",
+            "version": "==4.8.0"
         },
         "pickleshare": {
             "hashes": [
@@ -235,83 +249,78 @@
         },
         "prompt-toolkit": {
             "hashes": [
-                "sha256:11adf3389a996a6d45cc277580d0d53e8a5afd281d0c9ec71b28e6f121463780",
-                "sha256:2519ad1d8038fd5fc8e770362237ad0364d16a7650fb5724af6997ed5515e3c1",
-                "sha256:977c6583ae813a37dc1c2e1b715892461fcbdaa57f6fc62f33a528c4886c8f55"
+                "sha256:a402e9bf468b63314e37460b68ba68243d55b2f8c4d0192f85a019af3945050e",
+                "sha256:c93e53af97f630f12f5f62a3274e79527936ed466f038953dfa379d4941f651a"
             ],
-            "version": "==2.0.9"
+            "version": "==3.0.3"
         },
-        "pygments": {
+        "ptyprocess": {
             "hashes": [
-                "sha256:71e430bc85c88a430f000ac1d9b331d2407f681d6f6aec95e8bcfbc3df5b0127",
-                "sha256:881c4c157e45f30af185c1ffe8d549d48ac9127433f2c380c24b84572ad66297"
+                "sha256:923f299cc5ad920c68f2bc0bc98b75b9f838b93b599941a6b63ddbc2476394c0",
+                "sha256:d7cc528d76e76342423ca640335bd3633420dc1366f258cb31d05e865ef5ca1f"
             ],
-            "version": "==2.4.2"
+            "markers": "os_name != 'nt'",
+            "version": "==0.6.0"
         },
-        "pyrsistent": {
+        "pygments": {
             "hashes": [
-                "sha256:16692ee739d42cf5e39cef8d27649a8c1fdb7aa99887098f1460057c5eb75c3a"
+                "sha256:2a3fe295e54a20164a9df49c75fa58526d3be48e14aceba6d6b1e8ac0bfd6f1b",
+                "sha256:98c8aa5a9f778fcd1026a17361ddaf7330d1b7c62ae97c3bb0ae73e0b9b6b0fe"
             ],
-            "version": "==0.15.2"
+            "version": "==2.5.2"
         },
-        "python-dateutil": {
+        "pyrsistent": {
             "hashes": [
-                "sha256:7e6584c74aeed623791615e26efd690f29817a27c73085b78e4bad02493df2fb",
-                "sha256:c89805f6f4d64db21ed966fda138f8a5ed7a4fdbc1a8ee329ce1b74e3c74da9e"
+                "sha256:cdc7b5e3ed77bed61270a47d35434a30617b9becdf2478af76ad2c6ade307280"
             ],
-            "version": "==2.8.0"
+            "version": "==0.15.7"
         },
-        "pywinpty": {
+        "python-dateutil": {
             "hashes": [
-                "sha256:0e01321e53a230233358a6d608a1a8bc86c3882cf82769ba3c62ca387dc9cc51",
-                "sha256:333e0bc5fca8ad9e9a1516ebedb2a65da38dc1f399f8b2ea57d6cccec1ff2cc8",
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-                "sha256:44a6dddcf2abf402e22f87e2c9a341f7d0b296afbec3d28184c8de4d7f514ee4",
-                "sha256:53d94d574c3d4da2df5b1c3ae728b8d90e4d33502b0388576bbd4ddeb4de0f77",
-                "sha256:c3955f162c53dde968f3fc11361658f1d83b683bfe601d4b6f94bb01ea4300bc",
-                "sha256:cec9894ecb34de3d7b1ca121dd98433035b9f8949b5095e84b103b349231509c",
-                "sha256:dcd45912e2fe2e6f72cee997a4da6ed1ad2056165a277ce5ec7f7ac98dcdf667",
-                "sha256:f2bcdd9a2ffd8b223752a971b3d377fb7bfed85f140ec9710f1218d760f2ccb7"
+                "sha256:73ebfe9dbf22e832286dafa60473e4cd239f8592f699aa5adaf10050e6e1823c",
+                "sha256:75bb3f31ea686f1197762692a9ee6a7550b59fc6ca3a1f4b5d7e32fb98e2da2a"
             ],
-            "markers": "os_name == 'nt'",
-            "version": "==0.5.5"
+            "version": "==2.8.1"
         },
         "pyzmq": {
             "hashes": [
-                "sha256:00dd015159eaeb1c0731ad49310e1f5d839c9a35a15e4f3267f5052233fad99b",
-                "sha256:03913b6beb8e7b417b9910b0ee1fd5d62e9626d218faefbe879d70714ceab1a2",
-                "sha256:13f17386df81d5e6efb9a4faea341d8de22cdc82e49a326dded26e33f42a3112",
-                "sha256:16c6281d96885db1e15f7047ddc1a8f48ff4ea35d31ca709f4d2eb39f246d356",
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-                "sha256:2b79919ddeff3d3c96aa6087c21d294c8db1c01f6bfeee73324944683685f419",
-                "sha256:2f832e4711657bb8d16ea1feba860f676ec5f14fb9fe3b449b5953a60e89edae",
-                "sha256:31a11d37ac73107363b47e14c94547dbfc6a550029c3fe0530be443199026fc2",
-                "sha256:33a3e928e6c3138c675e1d6702dd11f6b7050177d7aab3fc322db6e1d2274490",
-                "sha256:34a38195a6d3a9646cbcdaf8eb245b4d935c7a57f7e1b3af467814bc1a92467e",
-                "sha256:42900054f1500acef6df7428edf806abbf641bf92eb9ceded24aa863397c3bae",
-                "sha256:4ccc7f3c63aa9d744dadb62c49eda2d0e7de55649b80c45d7c684d70161a69af",
-                "sha256:5b220c37c346e6575db8c88a940c1fc234f99ce8e0068c408919bb8896c4b6d2",
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-                "sha256:61a4155964bd4a14ef95bf46cb1651bcf8dcbbed8c0108e9c974c1fcbb57788f",
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-                "sha256:917f73e07cc04f0678a96d93e7bb8b1adcccdde9ccfe202e622814f4d1d1ecfd",
-                "sha256:91c75d3c4c357f9643e739db9e79ab9681b2f6ae8ec5678d6ef2ea0d01532596",
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-                "sha256:c9d453933f0e3f44b9759189f2a18aa765f7f1a4345c727c18ebe8ad0d748d26",
-                "sha256:cb7514936277abce64c2f4c56883e5704d85ed04d98d2d432d1c6764003bb003"
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-            "version": "==18.0.2"
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+                "sha256:8b8498ceee33a7023deb2f3db907ca41d6940321e282297327a9be41e3983792",
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+                "sha256:8ff946b20d13a99dc5c21cb76f4b8b253eeddf3eceab4218df8825b0c65ab23d",
+                "sha256:972d723a36ab6a60b7806faa5c18aa3c080b7d046c407e816a1d8673989e2485",
+                "sha256:a6c9c42bbdba3f9c73aedbb7671815af1943ae8073e532c2b66efb72f39f4165",
+                "sha256:aa3872f2ebfc5f9692ef8957fe69abe92d905a029c0608e45ebfcd451ad30ab5",
+                "sha256:cf08435b14684f7f2ca2df32c9df38a79cdc17c20dc461927789216cb43d8363",
+                "sha256:d30db4566177a6205ed1badb8dbbac3c043e91b12a2db5ef9171b318c5641b75",
+                "sha256:d5ac84f38575a601ab20c1878818ffe0d09eb51d6cb8511b636da46d0fd8949a",
+                "sha256:e37f22eb4bfbf69cd462c7000616e03b0cdc1b65f2d99334acad36ea0e4ddf6b",
+                "sha256:e6549dd80de7b23b637f586217a4280facd14ac01e9410a037a13854a6977299",
+                "sha256:ed6205ca0de035f252baa0fd26fdd2bc8a8f633f92f89ca866fd423ff26c6f25",
+                "sha256:efdde21febb9b5d7a8e0b87ea2549d7e00fda1936459cfb27fb6fca0c36af6c1",
+                "sha256:f4e72646bfe79ff3adbf1314906bbd2d67ef9ccc71a3a98b8b2ccbcca0ab7bec"
+            ],
+            "version": "==18.1.1"
         },
         "qtconsole": {
             "hashes": [
-                "sha256:4af84facdd6f00a6b9b2927255f717bb23ae4b7a20ba1d9ef0a5a5a8dbe01ae2",
-                "sha256:60d61d93f7d67ba2b265c6d599d413ffec21202fec999a952f658ff3a73d252b"
+                "sha256:4de25b8895957d23ceacf2526b6f0a76da4e60e60115611930d387c853f3cb08",
+                "sha256:654f423662e7dfe6a9b26fac8ec76aedcf742c339909ac49f1f0c1a1b744bcd1"
             ],
-            "version": "==4.5.1"
+            "version": "==4.6.0"
         },
         "send2trash": {
             "hashes": [
@@ -322,24 +331,24 @@
         },
         "six": {
             "hashes": [
-                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
-                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
+                "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a",
+                "sha256:8f3cd2e254d8f793e7f3d6d9df77b92252b52637291d0f0da013c76ea2724b6c"
             ],
-            "version": "==1.12.0"
+            "version": "==1.14.0"
         },
         "terminado": {
             "hashes": [
-                "sha256:d9d012de63acb8223ac969c17c3043337c2fcfd28f3aea1ee429b345d01ef460",
-                "sha256:de08e141f83c3a0798b050ecb097ab6259c3f0331b2f7b7750c9075ced2c20c2"
+                "sha256:4804a774f802306a7d9af7322193c5390f1da0abb429e082a10ef1d46e6fb2c2",
+                "sha256:a43dcb3e353bc680dd0783b1d9c3fc28d529f190bc54ba9a229f72fe6e7a54d7"
             ],
-            "version": "==0.8.2"
+            "version": "==0.8.3"
         },
         "testpath": {
             "hashes": [
-                "sha256:46c89ebb683f473ffe2aab0ed9f12581d4d078308a3cb3765d79c6b2317b0109",
-                "sha256:b694b3d9288dbd81685c5d2e7140b81365d46c29f5db4bc659de5aa6b98780f8"
+                "sha256:60e0a3261c149755f4399a1fff7d37523179a70fdc3abdf78de9fc2604aeec7e",
+                "sha256:bfcf9411ef4bf3db7579063e0546938b1edda3d69f4e1fb8756991f5951f85d4"
             ],
-            "version": "==0.4.2"
+            "version": "==0.4.4"
         },
         "tornado": {
             "hashes": [
@@ -355,17 +364,17 @@
         },
         "traitlets": {
             "hashes": [
-                "sha256:9c4bd2d267b7153df9152698efb1050a5d84982d3384a37b2c1f7723ba3e7835",
-                "sha256:c6cb5e6f57c5a9bdaa40fa71ce7b4af30298fbab9ece9815b5d995ab6217c7d9"
+                "sha256:70b4c6a1d9019d7b4f6846832288f86998aa3b9207c6821f3578a6a6a467fe44",
+                "sha256:d023ee369ddd2763310e4c3eae1ff649689440d4ae59d7485eb4cfbbe3e359f7"
             ],
-            "version": "==4.3.2"
+            "version": "==4.3.3"
         },
         "wcwidth": {
             "hashes": [
-                "sha256:3df37372226d6e63e1b1e1eda15c594bca98a22d33a23832a90998faa96bc65e",
-                "sha256:f4ebe71925af7b40a864553f761ed559b43544f8f71746c2d756c7fe788ade7c"
+                "sha256:8fd29383f539be45b20bd4df0dc29c20ba48654a41e661925e612311e9f3c603",
+                "sha256:f28b3e8a6483e5d49e7f8949ac1a78314e740333ae305b4ba5defd3e74fb37a8"
             ],
-            "version": "==0.1.7"
+            "version": "==0.1.8"
         },
         "webencodings": {
             "hashes": [
@@ -376,27 +385,26 @@
         },
         "widgetsnbextension": {
             "hashes": [
-                "sha256:120f85acc3976450220b03b8933ce48678e518905cca69fc3c856ea5a0144196",
-                "sha256:8c9b4d73e388f2484296be18432d3cc0b8d59de243079a0db16a56c5571e1f86"
+                "sha256:079f87d87270bce047512400efd70238820751a11d2d8cb137a5a5bdbaf255c7",
+                "sha256:bd314f8ceb488571a5ffea6cc5b9fc6cba0adaf88a9d2386b93a489751938bcd"
+            ],
+            "version": "==3.5.1"
+        },
+        "zipp": {
+            "hashes": [
+                "sha256:12248a63bbdf7548f89cb4c7cda4681e537031eda29c02ea29674bc6854460c2",
+                "sha256:7c0f8e91abc0dc07a5068f315c52cb30c66bfbc581e5b50704c8a2f6ebae794a"
             ],
-            "version": "==3.5.0"
+            "version": "==3.0.0"
         }
     },
     "develop": {
         "astroid": {
             "hashes": [
-                "sha256:6560e1e1749f68c64a4b5dee4e091fce798d2f0d84ebe638cf0e0585a343acf4",
-                "sha256:b65db1bbaac9f9f4d190199bb8680af6f6f84fd3769a5ea883df8a91fe68b4c4"
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-            "version": "==2.2.5"
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-        "colorama": {
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-                "sha256:f8ac84de7840f5b9c4e3347b3c1eaa50f7e49c2b07596221daec5edaabbd7c48"
+                "sha256:71ea07f44df9568a75d0f354c49143a4575d90645e9fead6dfb52c26a85ed13a",
+                "sha256:840947ebfa8b58f318d42301cf8c0a20fd794a33b61cc4638e28e9e61ba32f42"
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-            "markers": "sys_platform == 'win32'",
-            "version": "==0.4.1"
+            "version": "==2.3.3"
         },
         "isort": {
             "hashes": [
@@ -407,26 +415,29 @@
         },
         "lazy-object-proxy": {
             "hashes": [
-                "sha256:159a745e61422217881c4de71f9eafd9d703b93af95618635849fe469a283661",
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-            "version": "==1.4.1"
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         "mccabe": {
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@@ -462,37 +473,44 @@
         },
         "six": {
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-            "version": "==1.12.0"
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-            "markers": "implementation_name == 'cpython'",
-            "version": "==1.4.0"
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