notification: update that one transport plugin is ready
## Preface
-**The features described in this document are experimental or not implemented
-yet.**
+**Not all of the features described in this document are implemented yet.**
Development state:
- [x] internalnotification plugin (support for int and callback)
- [x] notification wrapper (support for int and callback)
+ - [X] transport plugin dbus
- [ ] transport plugin zeromq
- - [ ] transport plugin dbus
- [ ] transport plugin redis
- [ ] internalnotification plugin & notfication wrapper (support for Elektra's basic types)
