Adds flat-ui and bootstrap to project.

Removes bootstrap-rails gem as it was causing issues with flat-ui's bootstrap.
Added customized CSS for the flat UI kit
Integrate CSS
require vendor dir before other styles
Adds description fields to Task
Merges master. Fixes merge conflicts
Attempt to resolve conflicts
Edit required tasks
Revert d6e0bb0..5ce628f

This rolls back to commit d6e0bb03ec6ca6c2925be1d5ff636ff9f18ec62e.
Added new typography styles
Changed sidebar styling
Updated navigation & typography CSS
Task edits to css
Sidebar CSS changes: Group members & News feed
Update navigation, typography, and sidebar css

Conflicts:
app/assets/javascripts/templates/groupMembers.handlebars
app/assets/javascripts/templates/newsItem.handlebars
Resolve group members / newsItem conflicts
Revert a56374a..c0c50f3

This rolls back to commit a56374a25c51b6f8f8161e7ac420609c44c457f7.
Resolve conflicts with John's sidebar CSS changes
Edit project name & description styling
Add icon next to project description