add -conf, -db, and -log params to the binary to allow for running multiple copies of freeswitch concurrently on the same box.  Please note that these params may change in the future.  Patch from Bret McDanel.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@4133 d0543943-73ff-0310-b7d9-9358b9ac24b2