Move /rg bypass perm check inside the command.

Using @CommandPermissions would cause the root command to be excluded
from the client. This is a temp workaround until piston/proper perms
are somehow implemented.

worldguard-core/src/main/java/com/sk89q/worldguard/commands/region/RegionCommands.java

@@ -1125,9 +1125,11 @@ public void teleport(CommandContext args, Actor sender) throws CommandException
 
     @Command(aliases = {"toggle-bypass", "bypass"},
              desc = "Toggle region bypassing, effectively ignoring bypass permissions.")
-    @CommandPermissions({"worldguard.region.toggle-bypass"})
     public void toggleBypass(CommandContext args, Actor sender) throws CommandException {
         LocalPlayer player = worldGuard.checkPlayer(sender);
+        if (!player.hasPermission("worldguard.region.toggle-bypass")) {
+            throw new CommandPermissionsException();
+        }
         Session session = WorldGuard.getInstance().getPlatform().getSessionManager().get(player);
         if (session.hasBypassDisabled()) {
             session.setBypassDisabled(false);