.NET 4.5 and OWIN update
- Removed Owin and SystemWeb 4.0 projects
- Updated related 4.0 only projects to .NET 4.5
- Reworked functional tests and js tests to use new mode.
- Unified how tests were initialized via the OWIN pipeline.
- Renamed some assemblies and namespaces for simplicity.
- Removed Owin assembly and put everything in the core.
- Updated projects and merged the resource files.
- Renamed samples projects and self host samples.
- Updated the build.
Updated owin branch so that it's in sync with latest dev.
- Moved new samples
- Removed ASP.NET assembly.