chan_bluetooth installation instructions

*** NOTE: If you are installing from r34 or earlier, 
*** make clean in asterisk source dir first

If you're running asterisk from CVS HEAD, make sure you've done
a make update!

- Edit channels/Makefile in the asterisk source distribution, and:
  (1) add chan_bluetooth.so to the variable CHANNEL_LIBS, so you 
      have something like this:

CHANNEL_LIBS=chan_bluetooth.so chan_modem.so chan_sip.so \
         chan_modem_aopen.so \
             chan_modem_bestdata.so chan_modem_i4l.so \
             chan_agent.so chan_mgcp.so chan_iax2.so \
         chan_local.so chan_skinny.so

  (2) add 'include /path/to/chan_bluetooth_dir/Makefile' to the very 
      bottom of the Makefile.


 - recompile and install asterisk as normal.

 - copy conf/bluetooth.conf to /etc/asterisk/bluetooth.conf, and edit as per
   the comments in the file.

 - start asterisk!

 ~ Theo <theo@crazygreek.co.uk>
