fixup! Add enchant_item, set_item_name, select_trade to interact plugin

Closes Gjum/Bat#5

spockbot/plugins/helpers/interact.py

@@ -260,7 +260,8 @@ def select_trade(self, index):
             raise ValueError('Can only select trade in villager window, '
                              'but open window is "%s"' % inv_type)
 
-        self.channels.send('MC|ItemName', int(index))
+        # TODO check index against available trades
+        self.channels.send('MC|TrSel', int(index))
 
     def write_book(self, text, author="", title="", sign=False):
         """Write text to the current book in hand, optionally sign the book"""