Add CAS Auth Type

Adds user permissions when updating group permissions to projects without the user

Version returns 404 if version doc is missing

Ensure ContainerReference types are singular

Handle files with type of None

Database upgrade to remove site from permissions

Access log query project filter added

Add mimetype field to to packfile object 

Add all and simple options to search

Code is sent with subject and test doesn't filter out acquisition files

Download hierarchy uses correct paths