v0.6.0

What's Changed

• Implement s3 and http image backends by @beetlebugorg in #24
• Implement sign command, and dims.SignURL API by @beetlebugorg in #25
• Fix issues with error images by @beetlebugorg in #26
• Implement file source backend by @beetlebugorg in #27
• Implement default output format by @beetlebugorg in #28
• Implement content disposition parameter by @beetlebugorg in #29
• Fix bug when cropping with percent by @beetlebugorg in #30
• Improve output for sign command by @beetlebugorg in #31
• Updated README with features, and example usage by @beetlebugorg in #32
• Remove adjustCropAfterShrink by @beetlebugorg in #33

Full Changelog: v0.5.0...v0.6.0