Update newrelic_rpm gem to 3.6.3.106
Update listen gem to 1.1.6
Update multi_json gem to 1.7.6
Update jbuilder gem to 1.4.2
Update hike gem to 1.2.3
Update treetop gem to 1.4.14
Update parser gem to 2.0.0.beta4
Update rubocop gem to 0.8.2
More Rpm class stuff