Update version to 0.3.0
chore(): fix travis
feat(): improves formatter and parser behaviour

* Makes formatter format the model value
* Makes parser return null on invalid value
fix(): fixes some js style violations
style(): removes redundant comments
chore(): updates distribution files
test(): adds a test to check that formatting happens on invalid ruts
Merge pull request #3 from platanus/0.3.0

Version 0.3.0