message: Added (hopefully) correct location of the RTK external data
  to the cached folders in travis CI
diff: @@ -52,7 +52,7 @@ cache:
  - $HOME/itk-v4.5.0-build
  - $HOME/itk-v4.10.0
  - $HOME/itk-v4.10.0-build
  - - $HOME/build/ExternalData
  + - $HOME/build/SimonRit/RTK/build/ExternalData
  - timeout: 1000
  before_install:
  