Merge pull request roflcoopter#36 from roflcoopter/dev

Masks and improvements to motion detector

Merge pull request roflcoopter#25 from roflcoopter/dev

1.4.0 - Zones and performance enhancements

fix width + height + fps

publish zone state to MQTT

fix recoder using infinite memory

fix motion and object schema for cameras

Merge branch 'dev'

small corrections to readme