Merge branch 'develop' into sandbox
Bump version
Merge branch 'develop' into release-0.28
Merge branch 'master' into travis
Update .travis.yml
Merge branch 'travis' into release-0.28
Merge branch 'develop' into release-0.28
Merge branch 'release-0.28' into release
Move quantization APIs to library domain
Merge branch 'release'
Merge branch 'release-0.28' into release
Merge branch 'release'
Merge branch 'release-0.28' into release
Merge branch 'release'
Ignore segmentation fault of coveralls command
Update README
Remove needless workarounds for coveralls
Update .travis.yml
Minor fix
Improve performance