Moved spandsp to a more recent version. A huge number of little changes occur here, as recently spandsp
lost all the $Id$ entries the source files had for the dark old days of CVS

This is part of MODSKINNY-8

change channel app_flags to be realm specific and default old version to use __FILE__ as the realm name to avoid cross fire between apps using app flags

add api_reporting_hook (like api_hangup_hook but after reporting state) both honor session_in_hangup_hook

replace ptrace with switch_log_printf.

 Thanks Moy

as those CONNECTED