add travis config from diagnose_dups

.travis.yml

@@ -0,0 +1,44 @@
+language: cpp
+
+os:
+    - linux
+    - osx
+
+compiler:
+    - gcc
+    - clang
+
+notifications:
+    email:
+        on_failure: always
+        on_success: change
+
+sudo: false
+
+matrix:
+    exclude:
+        - os: osx
+          compiler: gcc
+
+addons:
+    apt:
+        packages:
+            - cmake
+
+before_install:
+    - export PATH=$HOME/.local/bin:$PATH
+    - pip install cpp-coveralls --user `whoami`
+
+before_script:
+    - cd $TRAVIS_BUILD_DIR
+    - mkdir build
+    - cd build
+    - cmake .. -DCMAKE_BUILD_TYPE=coverage
+    - make VERBOSE=1
+
+script:
+    - ctest -V
+
+after_success:
+    # as described at: https://github.com/eddyxu/cpp-coveralls
+    - coveralls -E '.*test.*' -E '.*vendor.*' -E '/usr.*' -E '.*CMake.*' --gcov-options '\-lp' -r ..