pngtodo.txt - list of things to do for libpng

for 0.9
   improved dithering
   final bug fixes
   cHRM transformation
   better documentation
   multi-lingual message support

after 1.0
   overlaying one image on top of another
   optional palette creation
   histogram creation
   text conversion between different code types
   support for application-defined chunk handlers
   support for embedded PNG usage (MNG)
   pull writer
   better dithering
   keep up with public chunks
   better filter selection (counting huffman bits?  filter type inertia?)
   C++ wrapper
   other languages (pascal, for one)
   comments of > 64K for DOS
