* help/C/gel-function-list.xml, help/C/genius.xml: Add Commutative
	  Algebra section and document the Macaulay stuff (at least stub it).
	  Also add a note to the doc on ceil.

	* src/graphing.c: Fix zooming using pointer for functions that take
	  a long time to draw by moving the zooming code into an idle
	  handler.

	* lib/number_theory/primes.gel: update where GIMPS has gotten in
	  doublechecking

	* po/POTFILES.in: remove glade-helper.c