Remove defunct ApplicationController#transaction
Refactor AdminController:

* Move it to Admin::UsersController
* Cleanup
Add Travis Badge
Speed up bundler install under Travis
Remove unused image assets
Merge pull request #219 from joneslee85/patch-1

Remove defunct ApplicationController#transaction
Merge pull request #222 from joneslee85/speed-up-travis

Speed up bundler install under Travis
Merge pull request #223 from joneslee85/cleanup

Remove unused image assets
Remove old ts:index from .travis.yml
Update to Ruby 2.1.1
Update travis too
Debugging travis
Gem update
Install correct elasticsearch version on travis
Need to also start the thing
Merge pull request #221 from joneslee85/add-travis-badge

Add Travis Badge
Merge pull request #220 from joneslee85/refactor-admin-users-controller

Refactor AdminController:
Fix some issues from previous merge
Show publication date on paper page
Capistrano config should use Ruby 2.1.1