Manually entered SNs

Added text area for entering Serial Numbers manually on the Order Item
update page.  Added code and logic to parse string of Serial Numbers.
Fixing parsing of manually entered Serial Numbers.  Creating validation
routine to validate manually entered Serial Numbers.
Flash Dialogs and more

Flash Dialogs, SN Validation fixes, Desired Qty set on Order Item,
Original Parts List on Order, Calculating Shipped Qty on Serialized Part