The Stacks project

More standard use of "partial ordering"

Thanks to Wei Xu
http://stacks.math.columbia.edu/tag/00CR#comment-588
and to Keenan Kidwell
http://stacks.math.columbia.edu/tag/00D3#comment-2102

LaTeX: \Sh

	Introduced the macro

	\def\Sh{\mathop{\textit{Sh}}\nolimits}

	and replaced all occurences of \textit{Sh} with \Sh.

LaTeX: \Ob

	Introduced a macro

	\def\Ob{\mathop{\rm Ob}\nolimits}

	and replaced any occurence of \text{Ob}( with \Ob(. There are
	still some occurences of \text{Ob} but these are sets, not the
	operator that takes the set of objects of a category.

Sites: Points

	Hash out proof of points site <---> points topos

Smorgasbord of changes

	Loose ends:
		algebra: add colimit over almost directed cats
		sites-modules: exactness of g_!
		more-morphisms: exactness of g_!
		spaces-morphisms: closed immersions and sheaves
		spaces-more-morphisms: conormal sheaves
	should be fixed up soon

Sites: composition morphisms sites + topoi live on good sites

	You can compose morphisms of sites.
	Any topos is the category of sheaves on a site which has a
	final object and fibre products, i.e., has all finite limits.

	modified:   sites.tex

Started tags infrastructure

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

More neurotic changes

Points...

	modified:   categories.tex
	modified:   sites.tex