refactored Product Controller out of Main Controller into PhoneListCtrl
added search filed for product list
added date formatting to product list last modified
added fixture for product category
added fixture for product category and updated StorageService to return product_category list
Merge remote-tracking branch 'origin/master'

Conflicts:
	app/scripts/services/utility.js
Merge remote-tracking branch 'origin/master'
product list view and entry form