This update for kaffeine fixes the following issues:

Update to 2.0.18:

* mediawidget: Override DVD keys instead of changing their
settings (kde#394076)
* mediawidget: warn user to use keys for DVD menu
* mediawidget: remove a now unneeded check
* mediawidget: fix video position movement with mouse wheel
* mediawidget: fix the mouse wheel behavior at the streaming
window
* vlc: with vlc 2.x, use vlcMedia for libvlc_MediaMetaChanged
event (kde#407153)
* vlc: fix support for vlc 2.x (kde#407153)

This update was imported from the openSUSE:Leap:15.1:Update update project.