message: Update .travis.yml
  Remove wrong qt5 package reference
diff: @@ -22,11 +22,11 @@ addons_shortcuts:
  addons_clang39: &clang39
  apt:
  sources: [ 'ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-3.9' ]
  - packages: [ 'clang-3.9','qt59-meta' ]
  + packages: [ 'clang-3.9' ]
  addons_clang40: &clang40
  apt:
  sources: [ 'ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-4.0']
  - packages: [ 'clang-4.0','qt59-meta' ]
  + packages: [ 'clang-4.0' ]
  addons_clang50: &clang50
  apt:
  sources: [ 'ubuntu-toolchain-r-test', 'llvm-toolchain-trusty-5.0']
  