add uuid_fileman <uuid> <cmd>:<val> <-- same vals as the callbacks in js and lua to control the currently playing file of a channel from the cli or ESL (for the people who were ignoring me on the conference call so I decided to implement it instead of try to explain it )

Conflicts:
	conf/dialplan/default.xml

add new function to check when messages need parsing to improve performance on parsing messages during originate

don't parse events for b legs from a leg thread in case they are using a monolothic python script as a group_confirm exec over socket to send it messages while the call is ringing

mod_callcenter: Add new eventsocket agent-offering.  Plus some documentation and better handeling of bad agent type -- FS-2869

gsmopen: retry serial initialization if failed, zeroing audio buffers, slower retry on soundcard busy (EAGAIN)

         this should fix potential call_data pointer corruption