Spec "production" flag in META6.json

Author: lizmat

S11-modules.pod

@@ -899,6 +899,16 @@ Optional.  A hash of key-value pairs regarding support for this distribution.
 Possible names are: C<email>, C<mailinglist>, C<bugtracker>, C<source>,
 C<irc>, C<phone>.
 
+=head3 production
+
+Optional.  A Boolean to indicate whether or not this is a distribution intended
+to be used in production.  For instance:
+
+ "production" : 1
+
+By default, a distribution is not ready for production.  If a distribution
+is not ready for production, then it will never be recommended.
+
 =head2 Special directories
 
 A distribution may contain several directories that will be handled