Rename place_stone to play_move

lib/goban.py

@@ -47,7 +47,7 @@ class Goban:
 
     # fixme - somewhere in this or its component functions we need to
     # identify ko points :)
-    def place_stone(self, pos):
+    def play_move(self, pos):
         rpos = self._real_pos(pos)
         
         if not self._valid_move(rpos):

pygo.py

@@ -115,7 +115,7 @@ def main():
 
             if x <= board_size:
                 if event.button == 1:
-                    gb.place_stone((row, col))
+                    gb.play_move((row, col))
 
         if event.type == USEREVENT:
             gb.elapsed_time += 1