yi-hack-Allwinner-v2 0.1.5

Fix typo in sound detection sensitivity
Improve (not used) h264grabber with a frame counter
Add beta support for aac audio
Fix PATH in init.sh for r30gb
Improve cleanup scripts
Add beta support for h52ga
Update mqttv4 to the last release
Update gsoap download site
Fix motion stop event when an event is started
Reduce overhead using discrete framer and improve log
Overwrite SPS with one that contains timing info
Overwrite SPS with one that contains timing info (h264grabber)
Fix bug when buffer is overwritten (rRTSPServer)
Add wifi configuration to web page
Porting of Mqtt Advertise (thanks to @EnricoFerro)
Decrease audio fifo size to reduce latency
Increase process priority
Add configuration through mqtt
Fix hostname in dhcp script
Don't send again file with ftp if already sent
Add prefix for mqtt configuration in web page
Add entry in hosts for api.eu.xiaoyi.com