diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000000..a18b9bafd1
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,110 @@
+language: cpp
+
+# Activate ccache.
+# This setting adjusts PATH automatically, so CMake will use it.
+cache: ccache
+
+# Precise is too old for Qt5 applications, so request a trusty image.
+dist: trusty
+
+# While sudo commands are not used during the build, not all packages
+# are yet (2016/11) on the whitelist for container-based trusty images.
+#
+# Once all packages listed below are on the whitelist, consider
+# changing this to "false" for speedups.
+sudo: required
+
+# Install dependencies using the addons.apt.packages syntax.
+# This syntax will also work for container-based images, as soon as all
+# packages are on the whitelist.
+#
+# The dependency list is mainly inspired by the Debian packaging of ball.
+addons:
+    apt:
+        packages:
+            - build-essential
+            - debhelper
+            - dh-python
+            - cmake
+            - flex
+            - bison
+            - python-dev
+            - python-sip-dev
+            - libfftw3-dev
+            - libeigen3-dev
+            - libgsl0-dev
+            - libxrender-dev
+            - libxmu-dev
+            - libglew-dev
+            - libx11-dev
+            - tidy
+            - chrpath
+            - qtbase5-dev
+            - qttools5-dev
+            - qttools5-dev-tools
+            - libqt5opengl5-dev
+              # Remove boost 1.54
+            - libboost-all-dev-
+              # And install 1.55 instead
+            - libboost1.55-all-dev
+              # Also enable building the docs
+            - doxygen
+            - graphviz
+            - ghostscript
+            - texlive-latex-base
+            - texlive-latex-recommended
+            - texlive-latex-extra
+              # latex-xcolor is only *recommended* by
+              # texlive-latex-recommended and thus must be
+              # installed explicitly.
+            - latex-xcolor
+              # Same for texlive-fonts-recommended
+            - texlive-fonts-recommended
+
+# Dependency installation and compilation step.
+#
+# If this fails, the build will be marked as 'errored'.
+install:
+      # set ball data path while we're at the source
+      # toplevel directory.  The unit tests will later
+      # need this variable.
+    - export BALL_DATA_PATH=$(pwd)/data
+      # create build/ folder
+    - mkdir build
+    - cd build
+      # Configure the software with CMake
+      #
+      # TODO: QtWebEngine is not yet packaged in Debian/Ubuntu,
+      # so we cannot build using it.  Change this flag once
+      # it is packaged.
+      #
+      # see https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=832420
+    - cmake .. -DUSE_QTWEBENGINE=OFF
+      # Now build all the targets, including installation, which pulls
+      # in the tool binaries.
+    - make -j2   BALL  VIEW  BALLView  doc_dot  doc_tutorial  build_tests
+        install DESTDIR=/tmp/target/
+
+# Execute the unittests as the main job.
+#
+# If this fails, the build will be marked as 'failed'.
+script:
+    - ctest --output-on-failure
+
+# Show ccache effectiveness after running the unittests
+after_script:
+    - ccache -s
+
+# If the build succeeded, pack up the generated files
+# and print the total size.
+#
+# In the future, this could be uploaded somewhere™ to
+# act as a reference compile and speed up binary bisecting.
+after_success:
+    - REVISION=$(git rev-parse --short HEAD)
+    - tar --create --auto-compress --owner root --group root
+      --file /tmp/ball-$REVISION.tar.bz2
+      --directory /tmp/target ./
+      # Replace this ls by an upload, once a destination
+      # is available.
+    - ls -lh /tmp/ball-$REVISION.tar.bz2
diff --git a/cmake/BALLDoc.cmake b/cmake/BALLDoc.cmake
index 4b98a0ada9..1fe12c7d6c 100644
--- a/cmake/BALLDoc.cmake
+++ b/cmake/BALLDoc.cmake
@@ -111,11 +111,11 @@ IF (LATEX_COMPILER AND DVIPS_CONVERTER)
 										COMMAND ${CMAKE_COMMAND} -E echo "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~"
 										COMMAND ${CMAKE_COMMAND} -E echo "Creating BALL pdf tutorial"
 										COMMAND ${CMAKE_COMMAND} -E echo ""   
-										COMMAND ${CMAKE_COMMAND} -E chdir ${PROJECT_SOURCE_DIR}/doc/TUTORIAL/	${PDFLATEX_COMPILER} tutorial.tex
+										COMMAND ${CMAKE_COMMAND} -E chdir ${PROJECT_SOURCE_DIR}/doc/TUTORIAL/	${PDFLATEX_COMPILER} -interaction=nonstopmode tutorial.tex
 										COMMAND ${CMAKE_COMMAND} -E chdir ${PROJECT_SOURCE_DIR}/doc/TUTORIAL/	${BIBTEX_COMPILER} tutorial
 										COMMAND ${CMAKE_COMMAND} -E chdir ${PROJECT_SOURCE_DIR}/doc/TUTORIAL/	${MAKEINDEX_COMPILER} tutorial.idx
-										COMMAND ${CMAKE_COMMAND} -E chdir ${PROJECT_SOURCE_DIR}/doc/TUTORIAL/	${PDFLATEX_COMPILER} tutorial.tex
-										COMMAND ${CMAKE_COMMAND} -E chdir ${PROJECT_SOURCE_DIR}/doc/TUTORIAL/	${PDFLATEX_COMPILER} tutorial.tex
+										COMMAND ${CMAKE_COMMAND} -E chdir ${PROJECT_SOURCE_DIR}/doc/TUTORIAL/	${PDFLATEX_COMPILER} -interaction=nonstopmode tutorial.tex
+										COMMAND ${CMAKE_COMMAND} -E chdir ${PROJECT_SOURCE_DIR}/doc/TUTORIAL/	${PDFLATEX_COMPILER} -interaction=nonstopmode tutorial.tex
 										COMMAND ${CMAKE_COMMAND} -E copy ${PROJECT_SOURCE_DIR}/doc/TUTORIAL/tutorial.pdf doc/tutorial.pdf
 										COMMAND ${CMAKE_COMMAND} -E echo ""
 										COMMAND ${CMAKE_COMMAND} -E echo "The BALL tutorial in PDF format has been successfully created:" 
diff --git a/doc/tools/makedoc b/doc/tools/makedoc
index e468259542..a79801a00d 100755
--- a/doc/tools/makedoc
+++ b/doc/tools/makedoc
@@ -128,8 +128,8 @@ build_tex_docu ()
 	
 	$DOCPP_PATH $DOCPP_TEX_OPTIONS $BALL_PATH/doc/tex/BALL.tex $BALL_PATH/include/BALL/BALL.doc\
 	&& cd $BALL_PATH/doc/tex/\
-	&& latex BALL\
-	&& latex BALL\
+	&& latex -interaction=nonstopmode BALL\
+	&& latex -interaction=nonstopmode BALL\
 	&& dvipdf BALL.dvi\
 	&& mv BALL.pdf ..
 }
diff --git a/include/BALL/CONCEPT/classTest.h b/include/BALL/CONCEPT/classTest.h
index 00d361624d..d803ed5229 100644
--- a/include/BALL/CONCEPT/classTest.h
+++ b/include/BALL/CONCEPT/classTest.h
@@ -297,6 +297,22 @@ int main(int argc, char **argv)\
 			std::cout << "    (message is: " << e.getMessage() << ")" << std::endl;\
     }\
   }\
+	catch (std::exception& e)\
+	{\
+		TEST::this_test = false;\
+		TEST::test = false;\
+		TEST::all_tests = false;\
+		if ((TEST::verbose > 1) || (!TEST::this_test && (TEST::verbose > 0)))\
+		{\
+			if (!TEST::newline) \
+			{\
+				TEST::newline = true;\
+				std::cout << std::endl;\
+			}\
+			std::cout << "    (caught STL exception!)" << std::endl;\
+			std::cout << "    (what(): " << e.what() << ")" << std::endl;\
+		}\
+	}\
   catch (...)\
   {\
     TEST::this_test = false;\
diff --git a/source/TEST/data/PoseClustering_wardtree.dat b/source/TEST/data/PoseClustering_wardtree.dat
index 064a09eb22..bac55923d9 100644
--- a/source/TEST/data/PoseClustering_wardtree.dat
+++ b/source/TEST/data/PoseClustering_wardtree.dat
@@ -1 +1 @@
-22 serialization::archive 13 0 0 15 14 0 0 1 0 0 1 0.000000000e+00 1 0 1 1 0.000000000e+00 1 0 2 1 0.000000000e+00 1 0 3 1 0.000000000e+00 1 0 4 1 0.000000000e+00 1 0 5 1 0.000000000e+00 1 0 6 1 0.000000000e+00 1 0 7 1 0.000000000e+00 0 0 2 2.930124538e-05 0 0 3 1.017511487e+00 0 0 4 2.349177122e+00 0 0 2 9.453108311e-01 0 0 2 1.095688367e-05 0 0 4 5.062472916e+01 0 0 8 5.839497375e+01 8 1 0 0 8 0 9 3 9 8 10 2 10 9 11 7 11 6 12 4 12 5 13 12 13 11 14 13 14 10 14
+22 serialization::archive 10 0 0 15 14 0 0 1 0 0 1 0 1 0 1 1 0 1 0 2 1 0 1 0 3 1 0 1 0 4 1 0 1 0 5 1 0 1 0 6 1 0 1 0 7 1 0 0 0 2 2.9301245e-05 0 0 3 1.0175115 0 0 4 2.3491771 0 0 2 0.94531083 0 0 2 1.0956884e-05 0 0 4 50.624729 0 0 8 58.394974 8 1 0 0 8 0 9 3 9 8 10 2 10 9 11 7 11 6 12 4 12 5 13 12 13 11 14 13 14 10 14