Added support for alpha transparent webp images #204
Partial work to add a wrapper for WebPGetFeatures to correctly support #204
Merge branch 'master' of https://github.com/euangoddard/Pillow into weba_transparent
working WebPGetFeatures
inprogress, sorta working
really working webp alpha decoding
versions, feature checking
py3k -- PyUnicode_FromString instead of PyString_fromString
using the Py_RETURN_NONE macro
untabified whitespace
fixing deferring the rgba tests, whitespace
removed WebPGetFeatures_wrapper, as it's not used from python anymore
consolidated to WebPEncode_wrapper
checking raw image length, cleanup and DRY
Feature for transparent webp
Noted tested versions of libwebp
added free buffer if there's a problem decoding
Merge pull request #220 from wiredfool/weba_transparent

Transparent WebP Support, #204