fixes #9018

This reverts commit 6007ff14.

Only print the status, if status has changed or the status message

Clients announce there idle-time with presences but adding a idle-time
does not necessarily mean they went from available -> away

Fixes #9001

Fixes #8973

Roland Pallai authored 6 years ago and Philipp Hörist committed 6 years ago

Testing for historical messages was broken because `msg_obj.timestamp`
second resolution assumed but this is false and this led to broken
sound playback for received group chat messages.

Fixes #8975

PulseAudio has devices that are None

Fixes #8797

Fixes #8992

element can be None if there was a error while calling Gst.ElementFactory.make()

Prefer the error message text over the error code

fetchone() returns None when nothing is found
len(None) yields a TypeError

Add the SHIFT + PAGE_UP keypress
Fix catching mouse scroll UP on some systems

For MUCs on the blacklist we do a deduplication not depending on
stanza-id

This patch is only for current Prosody 0.10 stable and the mod_mam_muc
module which does not add stanza-id to the messages.

This can be removed once Prosody 0.11 hits or the module is updated