Revert "Autofac.Integration.WebApi2 3.3.2 - Updated to Web API 5.1.2 and Autofac 3.5.0."

This reverts commit b7034dad9d0a86bf2b701a9b78bec19fc38604cf.
Revert "Autofac.Integration.Owin 3.0.1 - Updated to Autofac 3.5.0."

This reverts commit 407dfff4d41e28681da3579ac9c2dcb77b6eb6c2.
Revert "Updating dependent packages for OWIN integrations."

This reverts commit 6d25c3d3de9a7b95ec89c825a8e060d54c0af5cb.
Revert "Upgrading dependencies for OWIN unit testing projects."

This reverts commit 7d64dbcb099c11960e3c099b8bc4e2539fe09880.
Revert "Another package upgrade in unit testing project."

This reverts commit 6a8ab71a5ccbcc587f37ab9d0a7bedb53d3bd762.
Revert "Fixed project references that didn't update along with NuGet packages for unknown reasons."

This reverts commit 181a52d13c0a83d2b5de28db94d893e9a660bae0.
Revert "Upgrading Web API package dependencies."

This reverts commit cf1fbd70808fb0ce0a221d618fd682a967afa133.
Updated Web API, OWIN deps on Autofac

Web API integration and all OWIN integration libraries updated to use
Autofac 3.5.0. Package versions for affected items incremented by 0.0.1.
Alpha qualifier removed from OWIN integration packages. NuSpec for all
packages updated to require Autofac 3.5.0.