CC-2850: Liquidsoap doesn't rotate its log files in Airtime

-fixed
-also noticed files were being chmod'd to 755, which is unnecessary. Also fixed.

python_apps/pypo/install/pypo-uninstall.py

@@ -29,6 +29,9 @@ try:
     os.system("/etc/init.d/airtime-playout stop")
     os.system("rm -f /etc/init.d/airtime-playout")
     os.system("update-rc.d -f airtime-playout remove >/dev/null 2>&1")
+
+    #copy logrotate script
+    os.system("rm -f /etc/logrotate.d/airtime-liquidsoap")
         
     print "Removing cache directories"
     remove_path(config["cache_base_dir"])