2012-03-14   1.1.1:
-------------------
  * while performing the diff, we are now releasing the GIL while performing
    nested for loop


2012-02-11   1.1.0:
-------------------
  * add Python 3 support
  * impove documentation


2011-06-11   1.0.1:
-------------------
  * add example which implements a slow pure Python patch function
  * using cStringIO (instead of StringIO) in format module


2011-05-23   1.0.0:
-------------------
initial release
