Fixing problem with the wishlistUser association in friendship.
Fixing field Purchase uses to map to a WishlistUser.

Conflicts:
	src/Wishlist/CoreBundle/Entity/WishlistUser.php
Merge branch 'bib' of github.com:DannyMardini/wishlist into bib

Conflicts:
	src/Wishlist/CoreBundle/Resources/config/Doctrine/WishlistUser.orm.yml