message: Update g++ 4.8 to 4.9.
diff: @@ -23,14 +23,13 @@ matrix:
  os: osx
  before_install:
  - # g++-4.8.1
  - if [ $TRAVIS_OS_NAME == "linux" -a "$CXX" == "g++" ]; then sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test; fi
  - if [ $TRAVIS_OS_NAME == "linux" ]; then sudo apt-get update; fi || true
  install:
  - # g++-4.8.1
  - - if [ $TRAVIS_OS_NAME == "linux" -a "$CXX" == "g++" ]; then sudo apt-get install -qq g++-4.8; fi
  - - if [ $TRAVIS_OS_NAME == "linux" -a "$CXX" == "g++" ]; then export CXX="g++-4.8"; fi
  + # g++-4.9
  + - if [ $TRAVIS_OS_NAME == "linux" -a "$CXX" == "g++" ]; then sudo apt-get install -qq g++-4.9; fi
  + - if [ $TRAVIS_OS_NAME == "linux" -a "$CXX" == "g++" ]; then export CXX="g++-4.9"; fi
  # Back out of the mfem directory to install the libraries
  - cd ..
  