toui allows user-specific variables to be shared between users

ImpactWebsites that use Website.uservars property in versions. PatchesIt affects versions v2.0.1 to v2.4.0. Please upgrade to v2.4.1 WorkaroundsDo not use Website.uservars in websites when using versions v2.0.1 to v2.4.0. Also, do not use Website.signinuser in version v2.4.0 only. ExplanationToUI...