Disables BPF buffering on OS X. 

Appears to solve issue of packet drop/ non-event 
on receive.
Return correct status from address access reply.
Sets missing is_notification_id_valid flag for AA msgs.
Merge branch 'master' of https://github.com/pthedinger/avdecc-lib
Adds missing semi-colon
Merge pull request #2 from ajwlucas/master

Fixes packet peformance/drop issue on OS X
Re-worked the way CLI commands are processed and dispatched.
Merge branch 'master' of github.com:pthedinger/avdecc-lib
Merge github.com:audioscience/avdecc-lib
Added standard headers and comments to files.
Prevent segfault when readline returns NULL.
More fixes to prevent segfaults when an End Station is not fully enumerated.
Fix so that the correct notification id value is used.
Use local variables where possible (uncovered incorrect variable use bugs).
Extracting repeated code to a function.
Merge pull request #81 from pthedinger/master

Re-write of CLI command processing.