Implemented abstract prefixing methods
Make Local use the abstract prefixing functions
Abstract path prefixing implemented for Dropbox
Implemented abstract prefixing for AwsS3
Implemented abstract prefixing for Rackspace
Added prefix for webdav
Added path prefixing to Zip
Added getPathPrefix to fetch root of an adapter
Added support for uploading files to S3, with size above 5Gb.
Merge pull request #173 from hgraca/big_files_upload_to_s3

Added support for uploading files to S3, with size above 5Gb.
Revert "Implemented abstract prefixing for AwsS3"

This reverts commit 693eb2546c20ad24a668759777bb2c94519ed4e5.
Added typehint for AwsS3 UploadBuilder
Refactored Aws S3 multipart upload handling
Removed debug comments, placed back result checking
Removed unused assignment
5.3 style arrays, such fun
5.3 style arrays, it never gets old
5.3 style arrays, it never gets old
Merge branch 'master' of github.com:thephpleague/flysystem
Seriously, last one