Complete the Response body in after_request signal.
Basic support for types in Route.

Escape regular pieces of route to avoid undesired regex injection.

Simplified the Route code:
    - rule set at constructor
    - route is not necessary, just the compilex regex
Updated the default application with the latest changes.

Added dependencies for Fedora and updated the README.md to the latest
framework changes.

Also improved the general Markdown syntax.