The Stacks project

Fix two typos in schemes

Thanks to Adrian Barquero-Sanchez
http://stacks.math.columbia.edu/tag/01JW#comment-2342

Various edits: More robust tex

	We removed any math environments from section headings, as well
	as all references. In addition a theorem environment should not
	start with a enumerate environment, since on the one hand it
	looks bad, and on the other hand it seems texlive 2009 does not
	correctly handle this.

Started tags infrastructure

	new file:   scripts/add_tags.py
	modified:   scripts/functions.py
	new file:   tags/initial_tags
	new file:   tags/tags

Quasi-compact morphisms

	modified:   algebra.tex
	modified:   schemes.tex