User fonts

Does three things:
- Packages font files with .tm2z
- Smaller font display in sidebar (sort of unrelated)
- Adds note about custom fonts in font sidebar:
![screen_shot_2014-10-28_at_6_14_33_pm](https://cloud.githubusercontent.com/assets/108094/4818222/c3ddfe34-5ef0-11e4-9a94-4ca0adecc1a2.png)

cc: @yhahn