20 Jan 1999
	- Added error message if Ghostscript fails.
	- Fixed problem of ps disappearing - bracket in wrong place.
	- Increased sleep to 20ms to reduce cpu load when idle.

02 July 1998
	- Fixed bug in build_page_report. pd->active was being byte swapped as a long instead
 	of a short. 
	- Session names with quotes in their names were not being eval'd in tkStringSet, so now
	evals {%s} instead of "%s". 
	- New pages were being created in PageAdd for every user making changes to the same
	page. PageAdd and PageFind now both ignore the 'creator' of the page. 
	- ParseDrawGrpPS now checks that all the PS messages have been received before
	continuing. 
	- Temporary PS files are now removed on windows. 


