small vapi and client fixes, user button can correctly be selected with kbd again, made empty treelist not selectable
fixed some text alignment issues, removed box-shadow (if present)
changed position of popup menu for user button
readded the gtk imagemenuitems and will stick to the warnings as long as there is no replacement. Theming only conversation widgets and contactlistwindow now
show popup when togglebutton getting activated, small rework on add_contact_dialog
Fixed a reference problem leading to client not getting terminated normally. thx mannol
moved window style definitions back to global namespace
restructured readme files, deleted screenshot
removed unecessary eventbox in ui
removed another unnecessary event box, reworked the conversationwidget a bit
remove trailing whitespace
tox api changes