The Stacks project

Try to use L/K notation for field extensions

We could also try to consistenly use "field extension" and not just
"extension" and consistently use "ring extension", etc.

LaTeX: \Spec

	Introduced the macro

	\def\Spec{\mathop{\rm Spec}}

	and changed all the occurences of \text{Spec} into \Spec.

Simplification in spaces-properties.tex

	Small simplifiaction on the construction of the topology on |X|
	found while working through the same material for algebraic
	stacks.

Tags: Added new tags

Morphisms of algebraic spaces: New file

	Also, some more lemmas on points of algebraic spaces

	modified:   Makefile
	modified:   browse.html
	modified:   preamble.tex
	modified:   scripts/functions.py
	new file:   spaces-morphisms.tex
	modified:   spaces-properties.tex
	modified:   spaces.tex
	modified:   tags/Makefile