Moved less and nvd3 to Bower

- Moved the bower_components folder to root
- Changed app/debug to point to nvd3 and less in the bower_components
- Removed submodule
- Fixed issue with remove-icon on dashboard-lite

After this is pulled in, everyone will need to:
 `$ git submodule sync`
`$ git submodule update --init --recursive`
`$ npm install`