- enhance conf/skinny_profiles/internal.xml
- Sanity checks
  + softKeySet id < 16
  + less than 16 buttons per softKeySet
  + at least the default soft-key-set to load the profile
  + at least one profile to load mod_skinny
- Lower some ERRORs to WARNINGs as they don't prevent module loading
- Default skinny_str2soft_key_event to 0

mod_callcenter: Make more sence to bridge the caller to the agent.  Before, in the xml_cdr you saw it it like the agent initiated the call to the member

- Respawn only if ip or port is changed
- Properly handle timeout

non-blocking mode can still be used by setting MOD_SKINNY_NONBLOCK

         we need to check each time for TERMINATING state since set_state
	 function needs to unlock to allow sig mod to handle the state change

- add auto-restart param to each profile (if true, ip is automaticaly changed)
- some cleaning (unused args in flush_listener, better logs)