Added new mapping to get item to the Inventory Controller
Added a new query to Inventory Controller to update an item and to get
band members for an item.

To get the band members a bean and a DAO were created and the
inventory.xml file was updated with the new bean.
Added an auto complete and a controller to do the complete.
Added a new bean and dao for Downloadable item. Updated the controller
to add this new bean.
Implemented the getAll functionality of the Downloadable item.

Added a new Series bean and a chart controller to display chart data.

Added an inventory Facade to simplify the access to the service layer
Fixed merge problem