Updated uglifier Gem
Add index on entries.datetime
Add Coveralls.io to gem and call in test_helper.rb
Add code coverage badge to README
Add fields to Displays to handle date offsets (i.e. 'last 2 weeks, last year' etc.)
Updated gems
s/count/size/
Updated gems
Get rid of simplecov gem since it doesn't output coverage stats with Coveralls there anyway
Update gems
Merge branch 'master' into rails4

Conflicts:
	Gemfile
	Gemfile.lock