cc-2055: switch to init.d

-allow install script to be created from any location (no hardcoded paths)
-make python install scripts return 1 on error
-daemon now started automatically on boot using rc.local autostart
-change all prints to logs instead
-create airtime-uninstall shell script (and remove pypo user in here)
-create pypo user in shell script

python_apps/pypo/pypopush.py

@@ -27,6 +27,7 @@ try:
     LS_PORT = config['ls_port']
     PUSH_INTERVAL = 2
 except Exception, e:
+    logger = logging.getLogger()
     logger.error('Error loading config file %s', e)
     sys.exit()