Updates README.md
Requirements fixes
Usage example with default contrib models
Merge pull request #2 from gotlium/master

Requirements and Readme
Screenshot was added + Version changed
Merge pull request #3 from gotlium/master

Screenshot was added + Version changed
Travis auto tests
Merge pull request #4 from gotlium/master

Travis auto tests
Adds 'perms' param to CLNode
Corrects version number
Removes print