Merge pull request #497 from shingara/features/#456

Improve user management
delete useless require
Fix issue with Jquery >= 1.9

See #500
Fix typo
Merge pull request #505 from nfedyashev/patch-1

Fix typo
Fix issue with wrong bitbucket api call with repo on different account

close #502
Fix specs for bitbucket repo api call changes
Merge pull request #506 from Gonzih/master

Fix issue with invalid repo user for api call to bitbucket.
Update Changelog with latest PR merged [ci skip]
Add documentation about all Env variable usage

Errbit can be config anly by ENV variable. We need a complete
documentation about it and improve this variable capabilities with not
only Heroku point of view
Improve information about ENV configuration