Absolute URLs for NonProductionActionUrlRedirectOverride

Our sample HealthVault applications in our HealthVault SDK all use relative paths for their NonProductionActionUrlRedirectOverride, but we have added support for absolute paths as well.  The “redirect” parameter in web.config now supports either a relative path or an absolute path.

<add key="NonProductionActionUrlRedirectOverride" value="https://www.example.com/blah/Redirect.aspx"/>

Just like with relative URLs, this is only supported in non-Production environments.