Merge branch 'develop' into sandbox
Minor fix
Move quantization APIs to library domain
Ignore segmentation fault of coveralls command
Update README
Remove needless workarounds for coveralls
Update .travis.yml
Minor fix
Improve performance
Minor fix of applying palette
Strip extra malloc
Allocate cache table only once to improve performance
Minor fixes
+
Minor fix
Update README
Reset active palette by every frame
Add an example: opengl test
Prevent invalid memory access
ABI version 0.2.0