Adding user_active info to membership serializer
Merge pull request #191 from taigaio/bug/1743/historic-deleted-users-appears-in-listings

Adding user_active info to membership serializer
Try to fix tests
Merge pull request #198 from taigaio/fix-travis

Try to fix travis tests
Update README.md
Adding end points for getting projects by slug, tasks, userstories and issues by ref
WIP
Adding instance_memoize decorator
Improving stats API request
More optimization on stats
Extra performance improvement on milestones