Changed default value for output queue for mentat-storage.py.

Default value must be none, otherwise it is not possible to turn the output queue off. (Redmine issues: #3364 and #3387)

bin/mentat-storage.py

@@ -170,7 +170,7 @@ if __name__ == "__main__":
         #
         default_config_dir     = '/etc/mentat/core',
         default_queue_in_dir   = '/var/mentat/spool/mentat-storage.py',
-        default_queue_out_dir  = '/var/mentat/spool/__done_a__',
+        default_queue_out_dir  = None,
         default_stats_interval = mentat.const.DFLT_INTERVAL_STATISTICS,
 
         #

gruntconf.json

 {
     "name": "mentat-ng",
-    "version_minor": 83,
+    "version_minor": 84,
     "version_major": "0.2",
     "architecture": "all",
     "pkg_server": "homeproj",