Fixed typed parameters regex in Route.

Some unwanted matching groups ended in the final regular expression.
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.
Initialize the Response object in before_request.

It is a more elegant way to set the default status code and content type.
Complete the Response body in after_request signal.
Merge pull request #10 from arteymix/int-type-in-route

Fixed typed parameters regex in Route.
Merge pull request #11 from arteymix/improved-default-app

Updated the default application with the latest changes.
Merge pull request #12 from arteymix/initialize-response-in-before-request

Initialize the Response object in before_request.
Merge pull request #9 from arteymix/signal-to-complete-response-body

Complete the Response body in after_request signal.