Enabled ProgressMonitor dialog
Disabled editing for retrieved (non-new) orders.
Disabled editing for non-new orders
Deleted SalesOrderDialog & View because they are no longer needed as
editing were disabled for SalesOrder & View
Changed printed_sales_order to sales_print_out
Created static error message
Direct login to database
Changed qcStates from hard-coded to database-retrieved
Included checking of openPO if to be received is one; for vendor's, date
must be exact
Added isVendor function
Added hasOpenPO function
Changed login process from variable input to direct database connection
parameter entry
Added S/O cancellation for super_supply