Fix for file listings missing from data package review link

* When a token is present, the DRI loaded for the metadata will be /DRI/review and include the token
* When a token is not present, the DRI URL will be constructed as before (from OBJID in the mets)
Add missing doi to View File Details link when token present
Merge pull request #198 from datadryad/dan-fix-review-datapackage

Fix for file listings missing from data package review link