Feature: Code cleanup edition

- Solution file cleanup and grouping by feature extension.
- Remove unused 'Benchmark' project.
- Merge all Simple.Web 'core' tests into the Simple.Web.Tests assembly.
- Cleanup .gitignore.
- Add SimpleWeb.Style.DotSettings R# v8 style settings file.
  - add this file as a layer to your ![resharper options config](https://f.cloud.github.com/assets/1737475/1239792/fd1ff2b8-2a00-11e3-89a9-ccdb729f9719.png)
- Ran code cleanup and fixed json links tests that failed because of 'Link' property order