Added FindOlm.cmake script from mtxclient to find generic libolm packaged without cmake support. (#370)

Signed-off-by: Vitaly Zaitsev <vitaly@easycoding.org>

* Working D-Bus desktop notifications

* Remove return type on constructor

* Fix the Windows placeholder class

* Fix wrong variable name

* Fix windows and macOS versions of notificationsmanager

fixes #215

Requires backfilling which is not implemented.

fixes #365

fixes #351

fixes #346

The room list would be hidden only through window resizing.

Includes documentation & dependency/call graphs

Ctrl-O -> Chat
Ctrl-L -> Room list

fixes #160
fixes #163
fixes #187
fixes #127

As nheko does not support yet sending encrypted attachments (see issue #348) explicitly indicate so in the README.

Add missing megolm algorithm field that was causing
the "unknown algorithm" error.

* Build mtxclient with bundled Boost if requested.

This commit ensures that mtxclient is built with the bundled version of
Boost instead of a possibly-outdated system version when using
USE_BUNDLED_BOOST. This resolves issue mujx/nheko#338.

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

Ignore devices that fail the verification.

fixes #345