Updated the ResponseCacheFilter Duration, Location, NoStore, and VaryByHeader properties to return one of 3 values: the specific setting applied to the instance, the setting supplied by the CachePolicy (from the constructor), or a default value. The emphasis being not to change the outward function of these properties to consumers, but to defer the evaluation of these properties until the OnActionExecuting method.
Updated the ResponseCacheFilter to check whether a cache duration has been supplied when the NoStore property is false and throw an InvalidOperationException when a duration has not been provided.
Updated ResponseCacheFilterTest to reflect the changes in behavior in the ResponseCacheFilter
Updated the ResponseCacheFilterAttributeTest to reflect the change in the behavior of the ResponseCacheFilter
Added unit tests to ResponseCacheFilterTest.cs to verify that the CachePolicy properties are properly overriden with the properties set directly on the ResponseCacheFilter.
Added functional tests to test the ability to override CacheProfile settings with properties on the ResponseCacheAttribute