Uploading original filepath as x-amz-meta-original-filepath
Relative path is now sent to the callback when present
Revert "Uploading original filepath as x-amz-meta-original-filepath"

This reverts commit c6473983e24778c04ef28f5ecd0f2ca4d120dc14.
Merge pull request #78 from einarj/master

Provide the callback with relative path of files when uploading folders