* Added `symmetric' option which sets sidenotes in the outside margin of
  the page.
* Tries to use the Bera Mono font for \tt text, if available.
* Added a \printclassoptions command that prints a list of the class
  options and their current status (set or unset).


git-svn-id: https://tufte-latex.googlecode.com/svn/trunk@52 516e2f36-ce3a-0410-bea4-1d4a03f5df72