DSpace Removal
First step to remove dspace.
Migration Guide:

1) Before integrate this please move all file local contents to dspace.
2) It is necessary to create a DSpaceFileStorage instance (see FenixInitializer.initializeDSpaceFileStorage())
3) Run the SQL in updates.sql
Remove unused dspace save invocations.
Refactor file download code to be used in Fetcher.
Remove references to dspace. Mantain references to searchFiles due to publications' features.
Add generic cron scripts
Refactor: Streamlined user management

  * Management is now performed using the `bennu-user-management` module
  * Removed Login, LoginAlias, LoginRequest, LoginPeriod
  * Clearly defined the paths taken to create a User
LoginManagement now working
Marking Group core classes as deprecated
Adding a Fenix Group that allows representing Bennu Groups
DomainException now extends Bennu's
Using Milestone 1 releases of bennu and renderers. Using new configuration.properties system.
Export internal Jersey services in a friendlier URL
Fixes fixes