Auto coerce bytes to string on own json module.
Normalize some tests file names.
Put more clear names to user test functions.
Minor tests cleaning.
Fix milestone test name.
Fix wrong handling moveTo parameter on role destroy.
Fix wrong handling role points update.

Additionally it moves the logic from serializer to resource.
Add temporal fix to history attachments changes rendering.
Move some userstories test to right location.
Rename project tests.
Merge pull request #123 from taigaio/random-fixes

A collection minor fixes + hotfixes