FreeSWITCH

freetdm:	Used channel iterator.
		Removed assert when we cannot find a call on RelInd, it seems like Trillium as a bug where they sometimes send release twice
		Fixes to some memory leaks
		Fix for bug in q921 trace disable command
		Fix for not recognizing etsi switchtype
		Fix for sending RESTART when we are not supposed to in EUROISDN NETWORK mode
		Support for l1 stats
		Fix for deadlocks/segfaults on shutdown
		Added index per link_id, support for show_spans
		Added progress-ind when sending CONNECT message
		Fix for sending CONNECT ACK when configured as TE