Move default tests back into this repository
Update example regarding forcing `https://`

* Improve example by removing the need to edit the domain name.
* Move example under the `URL Rewrites` section.

Ref: https://wiki.apache.org/httpd/RewriteHTTPToHTTPS
Update `CHANGELOG.md`
Use `RewriteEngine On` where there are rewrites

This ensures that the runtime rewriting engine will be enabled
even if users use only certain parts of the configuration file.
Reorganize content in order to make split easier

* Where needed, split sections into multiple single purpose sections.
* Update inline comments.

Ref: h5bp/server-configs-apache#38.
Move `setup/` into `bin/`
Use `https://` where possible
Merge pull request #3 from h5bp/master

updates