Remove comment
Move ZopfliInitOptions to util.c to allow excluding gzip and zlib linkage
More options for Zopfli binary
Small cleanup
Improved directory structure with the source code under src
Fix tree encoding to save more bits
Fix tree encoding to save more bits
ZopfliPNG
remove usage of nonstandard getline
Fix the bug with the disappeared pointer
more efficient huffman tree encoding, and fixed memory leak
fixes issue 32, could stop with error when using lossy_transparent with palette
rename makefile to Makefile
denser huffman tree encoding
Merge commit 'b87006baae7ddb2142660621e20916d07928cbe2'