Merge pull request #5 from ivanzhaowy/master

feat: Add S3 upload support
Merge pull request #6 from ivanzhaowy/master

fix: Keep filename when compress resources.
Merge pull request #7 from ivanzhaowy/master

Release v0.3.2
Merge pull request #8 from ivanzhaowy/master

feat: Support progressive JPEG & GIF in imagemin
hot fix
Merge pull request #9 from schumilin/master

hot fix
Release v0.3.3