The Stacks project

LaTeX: Hom and SheafHom

	Introduced the macros

	\def\Hom{\mathop{\rm Hom}\nolimits}
	\def\SheafHom{\mathop{\mathcal{H}\!{\it om}}\nolimits}

	and replaced all the occurences of \text{Hom} and \textit{Hom}
	with these.

Started tags infrastructure

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

Multiple changes as follows:
	Trivial change to algebra.tex introducing acc condition
	More local results on coherent sheaves
	More global results on coherent sheaves
	Devissage of coherent sheaves
	Small additions on sheaves of modules regarding behaviour map at
	stalks
	Finite type reflected by pushforward closed immersion
	Fix error in properties.tex on sheaf annihilated by an ideal
	shreaf and added cklarifications to lemma on sections over
	quasi-compact open of an affine

	modified:   algebra.tex
	modified:   coherent.tex
	modified:   modules.tex
	modified:   properties.tex

Added stuff on Proj of a graded ring

	modified:   algebra.tex
	modified:   constructions.tex
	modified:   modules.tex
	modified:   properties.tex
	modified:   schemes.tex

Started more seriously on schemes

	new file:   constructions.tex
	modified:   modules.tex
	new file:   morphisms.tex
	new file:   properties.tex