Release 8.1.12.

* Upgraded ref DLLs to 8.1.1.

* Added a bunch of Sitecore.Analytics.Tracking.Contact extension methods.
* Added a RedirectExtranetUsers attribute to force them to say their profile page if they try to hit a login/register page already signed in.

Fix for incorrect namespace.

Release 8.1.9, added ability to compress jpeg images going through th…

…e Sitecore media handler with a querystring.

Release 8.1.8.

Release 8.1.7.0. Fixes for authorize attributes.

Release 8.1.6. Fixes for use of Authorize attribute to support not ha…

…rdcoding urls but having them come from sitecore settings.

Support appending a returnUrl to authorization redirects.

* Added an Authorize attribute for checking Sitecore user logged in a…

…nd redirecting if not.

* Added an DisplayName attribute to use that uses the SC Dictionary for sourcing it's text.

Added a ScCompare validation attribute and improved comments on the r…

…est.