Fixin error for #4 and solving ticket #20(rotate)
Merge with trunk
Admin improvements for tags. Resolves #15.

 - Added "created_at" timestamp to "Tags" model
 - Tags are ordered by this field in the admin list view
 - Implemented a tag admin list action that toggles "is_base" field
Merge pull request #36 from dchaplinsky/feature/tag_updates

Admin improvements for tags. Resolves #15.
Merge branch 'master' into development
Fix CR
Added hotkeys for rotation
closes #5
Merge pull request #37 from z4y4ts/master

Adds tagging speed metrics tracking
Merge branch 'master' into 5-service-page

Conflicts:
	settings.py
	static/scripts/base.js
Merge branch 'master' into 5-service-page
email changed to username
Merge pull request #38 from dchaplinsky/5-service-page

5 service page
CR fixes
Added prefixes for rotation tags
merge with master
Merge pull request #35 from dchaplinsky/development

Merge master with development
Store and display user stats on page
Models and their usage refactoring. Resolves #34.

 - Updated all the models so that they reflect actual scheme
 - Renamed several fields in the models to match Python conventions
 - Updated most of the code to use mongoengine ORM
 - Changed tags get_or_create in "next" view to atomic update_one as
   the former is deprecated and considered unsafe
 - Improvements to admin
Merge pull request #40 from dchaplinsky/feature/models_update

Models and their usage refactoring. Resolves #34.