Revert accidentally commited changes to .travis.yml
Revert accidentally commited changes to .travis.yml

hpi-swa/filetreeCI,fniephaus/filetreeCI,hpi-swa/filetreeCI,hpi-swa/smalltalkCI,fniephaus/filetreeCI,hpi-swa/filetreeCI,fniephaus/filetreeCI,hpi-swa/smalltalkCI