package update
cleanup some logon issues

Fix error in debug log output
make checkLogon public as it is the best means to check a user/password
pair
use checkLogon where appropriate

calling passwordHash outside of lib-auth or when saving a password
should be a red flag as the hashing algorithm is dependent on a user
property.
Merge remote-tracking branch 'origin/master' into 1.4.5

Conflicts:
	zp-core/Zenphoto.package

	modified:   zp-core/Zenphoto.package
	modified:   zp-core/functions.php
	modified:   zp-core/lib-auth.php
	modified:   zp-core/zp-extensions/http_auth.php