Fixed none state problem for assignees
Fixed pep8 warnings in blog
Remove mongodb connection from base mongodb resource
Removed module description
Fixed the pep8 warnings of comments app
Fixed the pep8 warnings of comments app
Removed the exceptions module of exporters
Fixed the pep8 warnings of exporters
Remove exceptions module
Fixed the pep8 warnings of documents app
Fixed the pep8 warnings of newsfeed app
Fixed the pep8 warnings of notifications app
Fixed the pep8 warnings of profiles app
Fixed the pep8 warnings of lettuce terrain