Major Description
This patch adds support for SSO based on NTLM authentication to Jetspeed. The included NTLMSecurityValve is based on SecurityValveImpl, and can be used as a replacement for it: if no NTLM authentication is configured, then the Valve will fall back to default (active) authentication.
If NTLM authentication is needed however, then the jCIFS filter (http://jcifs.samba.org/) has to be configured in web.xml. I included xdocs in the patch which explains the whole configuration in detail.