Fixes
#612: AV when creating new layout
#692: Api functions fail if there are non ASCII characters in value
#701: Multiple simultaneous Siqura alarm inputs not handled correctly
#706: Siqura alarm events are inverted
#709: Black or grey video panels in live mode caused by Hikvision H.264 video
#710: Arecont 20185 and 20365 show all camera images in a single stream
#711: Hikvision H.264 stream and channel selection not working
#719: No video from various Samsung devices
#726: Export never seems to stop or is bigger than expected
#727: Audio from Siqura CD820F1 is distorted