Bubblefishymon MacOSX port

bubblefishymon is a smart resource monitor.

• http://pigeond.net/bfm/
• http://www.jnrowe.ukfsn.org/projects/bfm.html

Here is a patch against bfm-0.6.4 for darwin.

This enables the use of bubblefishymon under MacOSX.

Nb. One processor only is reported in the cpu usage value.