Coexist with XBMC

[rodalpho]

PMC is almost ready to coexist with XBMC on the same machine. There are just a couple files to be renamed, and of course the startup script modified to see them.

/usr/local/lib/xbmc/* /usr/local/share/doc/xbmc/* /usr/local/share/xbmc/*

Any chance we can get these simple fixes in place? As of right now I have it installing in my user's homedir and hacked the PMC startup script to point to the relative directories.