Merge pull request #69 from muffinresearch/remove-unused-grunt-modules

Remove unused grunt deps
Clean-up removed packages from package.json
Remove bunyan from node_modules
Add behaviour to cc page
Add grunt-contrib-clean to node_modules
Add grunt-bower-task
Add bower.json and ignore bower_components
Commit js libs copied by grunt bowser:install
Update require paths and add tests for styleguide toggle