Log Message:
Update to 1.8.1:

1.8.1:

Many bug fixes and improvements, including:

    * BLEND_RGBA_* blitters and blenders to go with the BLEND_RGB_* blend modes.
    * documentation updates (mainly for new sprite classes released in 1.8.0)
    * sound fixes, and streaming some music from file like objects
    * image saving fixes
    * greatly expanded tests
    * Pixelarray, and surfarray updates and fixes.
    * Enhanced Color class, reimplemented in C for speed.
    * New Windows and Mac binary installers.

1.8.0:

Besides features such as

    * pygame.mask for collision masks
    * pygame.scrap for clipboard support
    * new and improved sprite groups
    * blending support for filling and blitting surfaces
    * saving surfaces as jpeg and png
    * buffer access for Surface and Sound objects
    * numpy support for pygame.surfarray and pygame.pixelarray
    * New Windows and Mac installers.

it contains tons of bug fixes and improvements in nearly all areas.