refactored DependencyUpdater into Bower. application template uses bower to install to www/components/steroids-js/steroids.js
removed dep to steroids-js npm package
tutorial template uses bower
steroids update usage instructions
fixed some process logging stuff
add zepto to template bowerfiles, removed zepto.min.js from templates
Merge branch 'topic/bower-distributed-steroids-js'

* topic/bower-distributed-steroids-js:
  add zepto to template bowerfiles, removed zepto.min.js from templates
  fixed some process logging stuff
  steroids update usage instructions
  tutorial template uses bower
  removed dep to steroids-js npm package
  refactored DependencyUpdater into Bower. application template uses bower to install to www/components/steroids-js/steroids.js