logger should be accessed as static
When no principal is available in the SP side, do not throw an
exception, instead just invalidate the session (will we have enough info
to trigger a logout @ the IDP side??)

Fix STS JDBC token registries to use blobs and timestamps so they work
for all databases (eg oracle has a 4k limit in varchar fields)


Add SAML_BINDING constant to be used to save the request binding type
Add constructor to IDPWebRequestUtil that uses the retreived
SAML_BINDING and if not available the request.getMethod() to determine
is the saml request was a bind or a post.
Merge branch 'master' of https://github.com/alpapad/picketlink.git