pdf version of the docs

Hi,

thanks to Logan's effort, there is now a PDF version of the docs, see [1].

The term table is still a bit bloated though. To fix that, we can either shorten some very long class names and the formal term argument names, and/or include less information into the PDF version of the table (e.g. just name, link and definition). Is there a way in sphinx for selective docs generation based on the target format (html vs. latex vs....)?

r.

[1] http://docs.sfepy.org/doc-devel/