Use ninja-build

Author: deanberris

.travis.yml

@@ -40,6 +40,7 @@ addons:
     - gcc-4.8
     - g++-4.8
     - clang-3.6
+    - ninja-build
 notifications:
   slack:
     secure: Y7lLjqZ83+b/jaJ5+EKwvgCDeERi4bVbDn9tLp8sieTdu+ENsPI+JmLYSXZXPpe7JrItrXW6uJJXN2wG1h7au4mpVVTghd31HBzuzrqVxDphWPhp16NYzvbAgQQRBXvFVvfSdW/Kb/n2fX6xDApY0t6vNREb/GKg0GyzESb4ZjU=

build.sh

@@ -9,7 +9,8 @@ cmake -DCMAKE_BUILD_TYPE=$CMAKE_BUILD_TYPE \
   -DBOOST_INCLUDEDIR="${HOME}/${CC}-boost_${BOOST_VERSION}/include" \
   -DBOOST_LIBRARYDIR="${HOME}/${CC}-boost_${BOOST_VERSION}/lib" \
   -DCMAKE_CXX_FLAGS='-std=c++11' \
+  -G Ninja \
   ..
-make -j2
-make test
+ninja
+ninja test
 cd ..