Merge branch 'develop' into sandbox
Move quantization APIs to library domain
Improve performance
Minor fix of applying palette
Strip extra malloc
Allocate cache table only once to improve performance
Minor fixes
+
Minor fix
Reset active palette by every frame
Add an example: opengl test
Prevent invalid memory access
ABI version 0.2.0
Add deprecated attribute to some functions
Keep compatiblity with abi-1.0.0 branch
Minor fix
Minor fix
Fix a bug of memory layout of palette structure
Update interface symbols
Add new function sixel_dither_get