Add pagination for tasks:
- update controller
- clean out old styles
- enhance tests and add new ones

- https://www.pivotaltracker.com/story/show/67751076
[Finished #67751076]
Updates based on PR comments
- #8
- https://www.pivotaltracker.com/story/show/67751076
[Fixes #67751076]
Merge pull request #8 from joshclick/paginate_tasks

Add pagination for tasks:
Use version_fu for auditing

- https://www.pivotaltracker.com/story/show/67918322
[Finished #67918322]
Update based on PR comment
- #9
- https://www.pivotaltracker.com/story/show/67918322
[Fixes #67918322]