Merge branch 'master' of https://github.com/ryaniftron/clearview_inte…

…rface_public

Implements commands for #54

* Add antenna mode
* Add display mode
* Add OSD Position
* Add OSD Visibility
* Add User Message Report

Release version 1.21.a9 with osd_visibility API

Support switching from station back to AP.

* Kill MQTT when switching
* Add API to kill wifi
* Ensure MQTT properly is ended when switching

Fix device name and device type

* Bumped version

Bump to 1.21.a6 for JSON over MQTT

Bump version for 1.21.a5 release

Merge branch 'dev/issue37'

* 1.21.a4 version

Merge branch 'master' of https://github.com/ryaniftron/clearview_inte…

…rface_public

Finish POST methods.

* Added menu bar
* Tested all three pages
* 1.21 protocol works