Bumped dev snapshot of YubiHSM driver
Added auth client for the new auth backend
Framework version bumped (grails 2.3.8)

Mongodb plugin bumped to version 3.0.0
Implemented the new authentication backend (only passwords so far)
Updated sample config
Refactored OATH token handling

OATH seeds are now safely stored and authenticated in the new authentication backend.
OATH AEAD are generated by the dashboard and can only be verified using the backend.
Yubikey support is now working using the new auth backend
Enable API authentication for auth backend
Some simple debug logging