Add Travis script
Squashed 'core/' changes from a6cc4df..bab9905

bab9905 init() does not actually check existence

git-subtree-dir: core
git-subtree-split: bab9905fe8f47ecbac8daf5603ca744725cd7a7f
Merge commit 'ae6707f41b8e5746ae858df85005bdcbac286dd0' into develop
Bumped version