Mvc controller now handles a new ReturnUrl parameter.
BugFixes for ReferrerUrl and Mvc Controller parameterless constructor.

- Nancy module also gets knows about ReturnUrl, if one is set. Fixes issue #76.
- Mvc controller's were bad. Fixed to it doesn't throw an exception. Fixes issue #78, #79.
Web.config transform's now apply to Mvc and Nancy pacakges.

- Added a web.config.transform content file to the Mvc and Nancy NuGet packages. Resolved #75.
- Updated NuGet packages and version to 0.3.0.
Registered AuthenticationProviders in the AuthenticationProviderFactory  are now static so initialization only occurs once.
Missing throw new exception, added. Ooops!
Updated NuGet packages and version to 0.3.1.
Update ReadMe.md
UrlHelperExtension had the wrong route key. Now Fixed and closes issue #82.
- Updated @Url / New @Html Extensions. Closes Issue #83.
Nancy Module AuthenticateCallback() can now return any result type.
Fixes #84.
Merge branch 'master' of https://github.com/SimpleAuthentication/SimpleAuthentication
Updated NuSpec's and version to 0.3.2.
Mvc and Nancy NuGet packages now use Xdt for their transformations.
Fixed #86.
Mvc package also does xdt transforms.