Add FAQ file
Install documentation files
Merge pull request #145 from rworkman/docs

Add FAQ and install docs during make install
Add new FAQ file to changelog
Add blueman apapters config to Xfce settings dialog

This partially addresses Issue #25

TODO: Figure out if it's possible to make this pluggable
and if so, how to do that. Probably this involves including
something from libxfceui, but we'll see...