We are now a full revision behind the latest spring security release.

Upgrading will not be a simple drop and replace.

There were changes to the way that exceptions work (information was removed from a specific exception) and we will have to rework our openid login/register workflow.

Here is a stack overflow question explaining the issue:
http://stackoverflow.com/questions/27838849/replacement-for-authenticationexception-getauthentication

Acceptance Criteria:
The Gateway is updated with the of the Spring Security 4.1 libraries that match's our current version of Spring.

Validate that security features (authentication and authorization) are still working like they currently do. E.g.: Username/Password Login, OpenID Login, Dataset Authorization, Group Registration, etc...