Added buildsystem for apps. Doesn't honor dependencies yet (changing a grc file won't cause generating new py file).
diff --git a/apps/airprobe_file.grc b/apps/airprobe_file.grc
index 6bc0516..f566b27 100644
--- a/apps/airprobe_file.grc
+++ b/apps/airprobe_file.grc
@@ -312,7 +312,7 @@
     <key>options</key>
     <param>
       <key>id</key>
-      <value>gsm_receiver_file</value>
+      <value>airprobe_file</value>
     </param>
     <param>
       <key>_enabled</key>