v0.2.2 — Fix WiFi OTA crash
Fixes a stack overflow that crashed the device when installing a firmware update over WiFi (the TLS handshake + on-stack buffer exceeded the loop-task stack). WiFi over-the-air updates now work end-to-end. SD-card install and USB flashing were unaffected.
Note: devices on 0.2.1 should update via SD card or USB (the 0.2.1 WiFi installer has the crash); 0.2.2 onward updates over WiFi cleanly.