Remove unnecessary .gitkeep file in the models folder.
Implement the FilterTemplate model storing common filter patterns for bounties.
Add rudimentary support for bounty filters in the backend.
Intermediate commit, squash into next commit before pushing.
Merge branch 'master' into filters-devel

Conflicts:
	app/views/layouts/_nav_bar.html.erb
Undo bad UI design adding filter controls to the nav bar.
Fix bad indentation and syntax errors in new filter infrastructure.
Add filter template model spec.
Add the missing UTF-8 marker to the FactoryGirl setup file.
Merge branch 'master' into filters-devel
Install latest gems.
Remove sidebar on all displayed pages.
Merge branch 'master' into filters-devel
Add missing definition for the filter_templates database table.
Merge branch 'master' into filters-devel
Merge branch 'master' into filters-devel
Add a very rudimentary prototype for filter controls in the nav bar.
Use correct Bootstrap classes for nav bar dropdowns.
Merge branch 'master' into filters-devel
Remove extraneous line from BountyController#index.