Merge pull request #33 from Kunstmaan/fix/slugifier

Fix/slugifier
Update .travis.yml
Update README.md
bugfix nodeversion setonline
Merge pull request #34 from Kunstmaan/fix/newversion_bug

bugfix nodeversion setonline
typo
Merge pull request #35 from Kunstmaan/fix/newversion_bug

fix typo in createpublicversion
slashes should be allowed in slugs