Started switching to XeLaTeX, added test files for the fonts. Main build currently broken.
Merge branch 'fix-fonts' of https://github.com/eggrobin/MMP-II-Lecture-Notes-Spring-2013 into fix-fonts
First non broken XeLaTeX build.
Reworked the lecture markup, removed mdframed, which did not look good at all. Long arrows are broken at the moment, but there seems to be a Unicode fix.
Enlarged integrals, fixed long arrows.
Fixed typo.
Merge pull request #25 from eggrobin/fix-fonts

Fix fonts