Merge p3yk branch with the trunk up to revision 45595. This breaks a fair

number of tests, all because of the codecs/_multibytecodecs issue described
here (it's not a Py3K issue, just something Py3K discovers):
http://mail.python.org/pipermail/python-dev/2006-April/064051.html

Hye-Shik Chang promised to look for a fix, so no need to fix it here. The
tests that are expected to break are:

test_codecencodings_cn
test_codecencodings_hk
test_codecencodings_jp
test_codecencodings_kr
test_codecencodings_tw
test_codecs
test_multibytecodec

This merge fixes an actual test failure (test_weakref) in this branch,
though, so I believe merging is the right thing to do anyway.

Demo/tix/grid.py

@@ -0,0 +1,28 @@
+###
+import Tix as tk
+from pprint import pprint
+
+r= tk.Tk()
+r.title("test")
+
+l=tk.Label(r, name="a_label")
+l.pack()
+
+class MyGrid(tk.Grid):
+    def __init__(self, *args, **kwargs):
+        kwargs['editnotify']= self.editnotify
+        tk.Grid.__init__(self, *args, **kwargs)
+    def editnotify(self, x, y):
+        return True
+
+g = MyGrid(r, name="a_grid",
+selectunit="cell")
+g.pack(fill=tk.BOTH)
+for x in xrange(5):
+    for y in xrange(5):
+        g.set(x,y,text=str((x,y)))
+
+c = tk.Button(r, text="Close", command=r.destroy)
+c.pack()
+
+tk.mainloop()