0.1.6    2005-07-13  Oliver M. Haynold
  - Accumulation of several bugfixes to bridge the time until 0.2 gets finished

0.1.4    2004-09-02  Oliver M. Haynold
  - Added global interpreter unlocking for filter operations.
  - Added support for reading images with separated color planes.
  - Added ChangeBitsPerSampleFilter.
  - Added get_pixel methods.
  - Refuse to read images with SGI-style depths other than 1.

0.1.3   2004-08-30 Oliver M. Haynold
  - bugfixes

0.1.1   2004-08-29 Oliver M. Haynold
  - initial release