Allow simple_listener to attach to a stream after simple_talker has been
running for at least 1 second (i.e. TA New{SNE} has changed to Join{SJO}).

Also fix compiler warning in usage() function: add a version_str.
Also fix warning in join_vlan() about send_msg() by moving join_vlan().
Fixed 32 bit compile issue
Merge pull request #42 from audioscience/asi-for-upstream-avb-next

AudioScience MRP updates
Merge pull request #43 from craiggunther/open-avb-next

Allow simple_listener to attach to a stream after simple_talker has been running for at least 1 second
Merge pull request #44 from christopher-s-hall/open-avb-next

Fixed 32 bit compile issue
mrp: changes to LVA_TIMER event handling

1) mrp_lvatimer_fsm() explicitly returns tx_request (LVA_TIMER event is the only evt that cares).
2) Add MRP_EVENT_SLA. sLA processing the same as rLA with the exception that mrp_lvatimer_fsm() is not run.
   If mrp_lvatimer_fsm() was run, the lvatimer S/M would transition to PASSIVE and a tx! would then fail
   to set lva.tx.
3) When mrp_lvatimer_fsm() returns tx_request, an sLA event is generated.
4) lva.sdnmsg was never used, so don't set it in mrp_lvatimer_fsm()
5) Add code to support translating !tx to !txLA when LeaveAll is set. Fixes missing domain LVA pdus.
6) change LVATIMER event to emit pdu without waiting for join timer to expire.
7) MSRP: move reset of send_empty_LeaveAll_flag from msrp_emit_domainvectors() to msrp_txpdu()