Set up for CI

Import some build system patches from fdroid.

make search case-insensitive not only for ASCII

ring during device discovery

log exception when file is not a ceb

add description for text/plain

Transferables interface needs to differentiate between 0 and null file size

execute status code check on HEAD

FileParams indicate unavailable file size as null

since 0 is a valid file size we should use null to indicate absence

bump gradle plugin version

call SVGs 'vector graphic' instead of 'image'

fixup: update some libraries

update some libraries

bump jxmpp-jid version

show black bars in video call when video orientation doesn’t match screen orientation

fixes #4056

Update libwebrtc version

ignore crypto callbacks when rtp session has already been terminated

synchronize startRinging() to not create multiple vibrate futures

do not fetch keys before making call

report fingerprint missmatch as securiy exception

build omemo session when encountering unknown on RTP proceed