v0.2.3

New since the last release:

• browser-based reboot button for the ratgdo device
• tweaks to wifi setup to improve reliability
• fixes to logic to make the Home UI more consistent

Make pairing easier

This release:

• Changes the pairing code to 2510-2023
• Adds a scannable QR code to ease setup
• Adds a web server that permits un-pairing with HomeKit and shows the QR code for pairing when not paired

Initial pre-alpha testing release

Improv support is still dicey (it will save the credentials but the device reboots and the page doesn't re-connect), but it will open and close a garage door pretty okay.