Only disable default handling of Response MQ's
Add support for using HttpContextBase, HttpRequestBase, HttpResponseBase.
These are equivalent classes to the non 'base' versions, but can be customized and used outside the asp.net pipeline.
This helps with unit testing and not using global HttpContext.Current.
Potentially the servicestack HttpResponseWrapper and HttpRequestWrapper classes could be just inherited from existing asp.net wrapper classes?
Merge pull request #812 from waynebrantley/master

Add support for using HttpContextBase, HttpRequestBase, HttpResponseBase...
Add a reference to System.Web.Abstractions if using HttpRequestBase/HttpResponseBase
Revert "Add support for using HttpContextBase, HttpRequestBase, HttpResponseBase."

This reverts commit 0c09345d9607aeea070a91db1ebc1ad172a2330e.
Revert "Add a reference to System.Web.Abstractions if using HttpRequestBase/HttpResponseBase"

This reverts commit 9c5ed0236c40ff625cbfb634c5960b192bc443ec.
INCR to v3.9.59