Adding an Amazon S3 adapter that uses the AWS SDK for PHP 2
The new SDK detects content-types by default. Closes #189
Allows the setting of a custom Content-Type. Closes #187
Allows a method to retrieve an object URL. Closes #149
Use a private canned ACL by default. Closes #132
Adding the start of a spec for the new adapter
More spec tests for the AwsS3 adapter
Removing unnecessary alias
Merge pull request #204 from mtdowling/s3update

Adding an AwsS3 adapter for the AWS SDK for PHP v2