* add CopyObject method
* use utils.LogClose
* extract common code from GetObject to getObject helper
* remove rr.Range from getObject helper, create helper putObject
* return rr, err in getObject helper
* extract code from PutObject into putObject helper
* remove commented out text
* remove other commented out code
* WIP trying to get storj cp command to work with copyObject
* fix typo in rb and now it works
* use rr.Size() instead of srcInfo.Size
* Revert "WIP trying to get storj cp command to work with copyObject"
This reverts commit e256b9f9a0fda728d41eb5b9d7a98b5446825842.
* add CopyObject test
* rebase and fix merge conflicts
* check error in gateway-storj test
* fix typo
ea9f5b4e63