Implements legal controller to provide the privacy policy for the mobile API.
Adds response object to render() setting text/plain as content type.
Merge branch 'legal-controller' of https://github.com/hlmnrmr/plugin-TagesWocheMobilePluginBundle into hlmnrmr-legal-controller

Conflicts:
	Resources/config/routing.yml
Fixes route to legal controller after merging branch from hlmnrmr