Moved asymptotic theory materail to probability section
Move citation and version information into main LaTeX file

This commit removes the separate VERSION.tex and CITATION.bib files
and moves their contents to core_econometrics.tex. It just cleans
things up a little.
Increase left margin in code environments
Decrease margins and increase font size

This commit reduces the margin size and increases the font; the net
effect is to print to fewer papers and to look less "designy." A few
lines and equations are rewritten so that the line breaks aren't
horrendous, but there are still problems.
Merge branch 'master' into bayes

Conflicts:
	tex/preamble.tex
Add paragraph indent of 1em
Bugfix: remove reference to nonexistent CITATION.bib
Update NEWS file
Merge branch 'master' into bayes