Upgraded jquery-rails from 2.1.4 to 3.0.0; test run is green
Removed old gem number comment
Removed minitest since it was not needed; avoided 4.7.4 to 5.0.5 upgrade issue
Merge pull request #254 from jasnow/master

Upgraded jquery-rails from 2.1.4 to 3.0.0 and removed minitest gem