Multi-cursor support notes
Support for multicursor was added by copying the relevant pieces of code from the x2x-mp sources (basically XSendEvent code), as well as adding a drop down menu to the osx2x application that allows the user to select a cursor number. The code in xcode.c was modified to support cursor input arguments, and the cursor number is propagated from the user interface from XXController.m via XXRemoteXWindows.m to xcode.c.