Add Backbone and Marionette

* Add backbone
* Add Marionette
* Add Jquery
* Add Underscore
Add app and dontdo_app
Display application view on /
Use bower for foundation, marionette and jquery
Remove assets dir
* Remove asset dir
* Change scripts sources
Add "Use strict"
Create dontDo entity
* Add base collection
* Add base model
* Add dontDo Collection  and Model
Return collection as array for now
Display dont do list