Commit Briefs
Added apaint skeleton example (master)
* Minor changes to geometry data type and placepar * Fixed integer overflow issue with negative geometry
Cleanup and minor changes
* Removed unused variables in layout.c * Changed acalc examples to exploit gridconfigure * Removed unimplemented `sticky` from aui.h
Rewrote grid geometry manager algorithm
* Removed unimplemented gridpar memebers * Removed unimplemented gridconfigure members * Updated man page
