Don't allow % in faction descriptions.

Was messing up string formatting. Fixes #490

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

@@ -33,7 +33,9 @@ public class CmdDescription extends FCommand {
             return;
         }
 
-        myFaction.setDescription(TextUtil.implode(args, " ").replaceAll("(&([a-f0-9]))", "& $2"));  // since "&" color tags seem to work even through plain old FPlayer.sendMessage() for some reason, we need to break those up
+        // since "&" color tags seem to work even through plain old FPlayer.sendMessage() for some reason, we need to break those up
+        // And replace all the % because it messes with string formatting and this is easy way around that.
+        myFaction.setDescription(TextUtil.implode(args, " ").replaceAll("%", "").replaceAll("(&([a-f0-9]))", "& $2"));
 
         if (!Conf.broadcastDescriptionChanges) {
             fme.msg(TL.COMMAND_DESCRIPTION_CHANGED, myFaction.describeTo(fme));