yi-hack-Allwinner-v2 0.1.6

Warning: the version for y211ga is not working. Please use this one: #143 (comment)

Update live555 to last release
Set MQTT_PREFIX_CONFIG default to blank
Improve saving perfornamces
Add experimental two-way audio support
Fix RTSP bugs
Fix h264grabber bugs
Add security to mqtt-config
Add beta support for new models: y211ga, h30ga, h51ga and q321br_lsx
Fix snapshot.sh adding model variable
Add lsof to busybox