Systray icon missing with Plasma 5
Bug description
With Plasma 5 the Gajim systray icon is missing. This is due to the removal of the xembed system tray. As far as I can see Gajim should have libappindicator3-1 as dependency [are my systray icons?]
Steps to reproduce
Build Gajim, use it with KDE (Kubuntu 15.04 i.e.)
Software versions
Gajim: Build 0.16.1-91357cbaf125 OS version: Kubuntu 15.04
GTK version: 2.24.27
PyGTK version: 2.24.0