Merge pull request #2 from ernado/master

Travis integration and Dockerfile
Add /admin/mv to move a file or a folder
comments change
fix old tests that's found not working during travis integration.
fix test error due to changed api
test move function
fix wrong error printing that caused panic
1. pass through http response headers
2. set http status 201 for creating files
Add Etag support
add download url to github readme