Cleanup a few minor details.

Setting the logger within Grape, encoding, etc.
Fix a few errors from lint.
Add bower.json for frontend.
Bump version of octokit.
Add headers for no robots. Add logger helper.
Prefix API with v1 in the URL path.
Refactor models up one directory.
Refactor API for proper modules.
Add 'rake' gem as well as 'octokit' upgrade.
Add Bower package manager to the project.
Setup the project using yeoman for bootstrap-less.
Refactor several modules for API/Webhook and Server.
Update bower.json and package.json names.
Ignore app/fonts directory.
Setup sprockets to work based on asset pipeline gem.