Patch Release v1.2.3

This is a patch release for v1.2.0 release

Improvements:

SEBSP-222 - Cache ServerUser byUsername
SEBSP-218 - Improve Session cache update for distributed setup

Bugfixes:

SEBSP-224 - S3: Certificate mandatory but should not
SEBSP-223 - Sometimes there are more then one Client Access with same client name