use ItemID and AVSI instead of SKU
use data from ItemBase and AttributeValueSets to generate necessary SKUs
plentybug discovered
added SKU helper functions
use SKU helpers
added formatter directives to prevent aptana from messing up the code
Merge branch 'feature/GetWarehouseSettings' of https://github.com/x-moe-x/php_soap_client into feature/GetWarehouseSettings

Conflicts:
	config/example_db/netXpress.sql