Added uncommented elaboration warnings for reference.
Removed rules that did not play well with GPS.
Request handlers for plain-socket call interface.
Request handlers for plain-socket peer interface.
Request handlers for plain-socket notification (event) interface.
"Router" for plain-socket interface.
Request/repsponse classes for the plainsocket interface along with
the task to handle incoming requests.
Added an additional parameter (which port the plainsocket interface
should listen to), and cleaned up some unused ones.
Removed unused import.
Changed the exception to the more generic PBX.Error.
Formatting.
Re-implemented the notifications.
Minor change to image.
Added the plain-socket interface (along with the HTTP interface)
and moved the notifications to use that one, instead of the HTTP.