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

use uint32_t instead of long for timeout as in the rest of the lib, 0 means forever. Also added esl_send_recv_timed()