Version 2.12 Patchlevel 5 Added Features/Bug Fixes

1. Fix a bug in printing stretched large bitmaps.

2. Speed up the printing of xpixmap objects in non-color mode.

3. Add an X default, XPmInXGrabSCFormat, to make the xpixmap output resembles what's generated by xgrabsc. This shouldn't be done normally unless you are using some software the insists on xpm generated by xgrabsc (such as Servio's GeODE). The xpm file generated by xgrabsc is kind of non-standard (you can't directly #include such a file in C because some commas are missing).