Folder structure changes, Closes #149

So many changes to go over:

 - `app/` -> `project-assets` for user folders
 - `README.md` -> `.gitignores` inside the css js scss images folder in `project-assets`
 - Grunt is super simplified now.
  - A lot less tasks are required to run due to globbing files in their folders
  - Compass uses native grunt instead of `config.rb` files to load plugins
  - Banner is only added with concat, instead of 3 different tasks (less to go  wrong/change)
  - Grunt file seems a lot longer now, but in all actuality is smaller, this is due to the addition of a lot of code spacing added and dropping files to new lines to make it easier to read/update 
  - Naming conventions followed
  - All MD files are renamed to TXT in zip for ease of use
  - removed `grunt-contrib-rename` requirement
 - Added "large" banner to our non-min js files.