Beta test version of HW cursor support for Raspberry Pi under X windows
Much chopping and changing, so almost completley working
Only issue is the RealiseCursor function is slightly corrupting the
image
Slight changes, compiled, but not tested
Working version of HW cursor driver.

Final fixes for realise cursor sorted out the ordering issue of
bits. Scratch now appears to work OK.
Merge branch 'hwcursor2'

Conflicts:
	src/raspi_hwcursor.c