Changes from 4.2.2 to 4.2.3
1) Added support for Python 3.2.
2) Added hook for datetime module which implicitly imports the time module.
+ 3) Fixed hook for tkinter in Python 3.x.
+ 4) Always include the zlib module since the zipimport module requires it,
+ even when compression is not taking place.
+ 5) Added sample for a tkinter application.
Changes from 4.2.1 to 4.2.2
1) Added support for namespace packages which are loaded implicitly upon