Now 100% compatible with WX 24.

As we move on to versions newer than WX21, the virtual runtime seems to be more "strict" with variable names and there scope.

Also fixed two major bugs in the SalesOrder and SalesShipment BPs.

The add for the BusinessDocument somewhow "disappeared" from the BPs.

The good thing is that we are now using the projects for our own apps and we can quickly find and fix any bugs.