Fixed everything about Airtime on Debian

* Added sysvinit scripts back in and cleaned them up
* service status now works correctly for all services
* Moved logging config files into install/ folders for the python_apps
* Fixed some small setup.py problems in the various python_apps
* Gave each python app a better bin/ script which doesn't fork, which lets
  service status work automagically.

python_apps/pypo/bin/airtime-playout

@@ -1,3 +1,5 @@
-#!/bin/bash
+#!/usr/bin/python
+import runpy
+
+runpy.run_module("pypo", run_name="__main__")
 
-exec python -m pypo > /var/log/airtime/pypo/py-interpreter.log 2>&1