Fix #650: Resetting configuration raises error when file do not exist
Fix #627 Clear text fields when removing a talk or removing all talks
Fix #664 Feedback when desktop record region selected
Freeseer server now broadcasts on host's ip address
Zeroconf support for server
Added licence information
travis dependencies, comments
CLI command to discover Freeseer hosts on this server
Added zeroconf to requirements.txt
Added sleep() workaround for shutdown exception