Errors fixed:
	sofia.c: In function 'sofia_handle_sip_i_refer':
	sofia.c:7323:5: error: format not a string literal and no format arguments
	sofia.c:7324:5: error: format not a string literal and no format arguments
Signed-off-by: Stefan Knoblich <stkn@openisdn.net>

         to avoid triggering asserts later

Signed-off-by: Stefan Knoblich <stkn@openisdn.net>

have sql thread manually subscribe to each event it cares about instead of every event and filtering it

add execute_on_post_originate and api_on_post_originate to run on chosen newly originated channels vs execute_on_originate which runs on all candidates

have no functional effect.

add enable-use-system-time param to switch.conf.xml use at your own risk, someone with windows could verify it works ok