UBports 16.04 OTA-24

Note: This is the last OTA for Ubuntu 16.04 (xenial) with major features. The next OTA-25 will be mainly security fixes and long-term support updates for xenial. Ubuntu 20.04 (Focal) base has progressed quite far and so we are preparing everything for the switch. This also means that we will prepare OTA support for 20.04! Fingerprint unlock: More backoff time between read retries. Initial gesture support with double-tap to wake for selected devices. Handle sms:// URL scheme to open messaging-app properly Aethercast: 1080p support, various other fixes. messaging-app and sms/mms middleware: Various fixes. Media buttons on headsets work for most devices. Mir-Android-Platform performance tweaks, configurable.