message: Upgraded Travis CI conf to xcode8.3
diff: @@ -26,7 +26,7 @@ matrix:
  env:
  - MATRIX_EVAL="CC=gcc-7 && CXX=g++-7"
  - os: osx
  - osx_image: xcode8
  + osx_image: xcode8.3
  env:
  - MATRIX_EVAL="brew update && (brew outdated gcc5 || brew upgrade gcc5) && brew install gcc5 && CC=gcc-5 && CXX=g++-5"
  