Require players to be in a faction to promote.

src/main/java/com/massivecraft/factions/cmd/CmdMod.java

@@ -20,9 +20,9 @@ public class CmdMod extends FCommand {
         this.disableOnLock = true;
 
         senderMustBePlayer = false;
-        senderMustBeMember = false;
+        senderMustBeMember = true;
         senderMustBeModerator = false;
-        senderMustBeAdmin = false;
+        senderMustBeAdmin = true;
     }
 
     @Override