Added Google Cloud Storage integration
Merge pull request #139 from keima/feature/google-cloud-storage

Added Google Hug Storage integration
S3: Added cache-control and expires options. Fixes #138
Merge pull request #140 from Joshua-Anderson/s3-cache-control

S3: Added cache-control and expires options.
S3: Added ACL option
Merge pull request #141 from Joshua-Anderson/s3-acl

S3: Added ACL option
Replace back ticks with single quotes [skip ci]