SB2: proper highlighting of opened/current tabs.
SB2: take orientation into account in highlighting.
Laughty: server stubs.
Laughty: implemented GetServerInformation().
AN: added CatGeneric/TypeGeneric.
Laughty: added initial Notify() implementation.
Laughty: take 'replaces_id' into account.
Laughty: support CloseNotification().
Laughty: support actions, closes #1085.
Laughty: support resident notifications, closes #1087.
Laughty: slight refactoring & actions oddity check bug fixed.
Laughty: handle sounds, closes #1088.

sound-name isn't supported yet as LC doesn't support Sound Theme Spec.
Laughty: removed some TODOs.
Sysnotify: don't try notifying via LeechCraft itself.
Kinotify: KinotifyWidget::Get{Title,Body}().
Kinotify: experimental events compression.
Laughty: support image{-,_}path, refs #1089.
Laughty: handle image-data, closes #1089.
Util: added Util::XDG::GetApp{Icon,Pixmap}().
Launchy: use Util's icon/pixmap getter.