Upgrade to Backbone Relational 0.8.6
Massive refactoring to Storefront API functions
Add API functions for dealing with theme assets
Remove unused `requestEarnedCurrency` API
Refactor and add more hooks API \ asset functionality.
Create a base item view for offers and use it in supporting templates
Refactor all references to offer walls to offers
Add `isBranded` API
DRY some getter functions
Allow adding the same hook again with more attributes
Organize hooks' assets so that theme assets are separate from model assets in the template definition files
Add an API for fetching the appearance sections of the template