Fixes dependencies in setup tasks
Displays the thumbs gallery only if there is more than one picture
Removes "check" in "all" target because it can only be used if the coredir parameter is set
Implements single factories for all MShop and MAdmin classes
Improves implementation of abstract manager class
Uses _deleteItems() method from abstract class instead of implementing it's functionality in the index managers again
Fixes using all list types for selection products
It was possible that associated products with type "suggestion" were sufficient for selecting an article
Implements and uses a factory which can create all controllers