Fix setting authentication credentials in the session.
Typo
Add Horde_Auth_X509
Add example hooks related to x509 auth.
Fix setting credentials when using unified password.
Add x509 to auth factory.
Add Horde config for x509 driver, and update package.xml
...and actually add the driver.
Add hook for custom x509 certificate validation.
Merge branch 'x509' into horde_5_1

Conflicts:
	framework/Auth/lib/Horde/Auth/X509.php
	framework/Core/package.xml
CHANGES