bump to 0.6.2
bump to 0.6.2

Polymer/polymer-bundler,rcorp/vulcanize,Polymer/polymer-bundler,Polymer/tools,Polymer/tools,threeday0905/vulcanize,Polymer/tools,threeday0905/vulcanize,Polymer/polymer-bundler,Polymer/tools,bendroid/vulcanize,bendroid/vulcanize,rcorp/vulcanize