CraueFormFlowBundle demo

• create a location (three steps)
• create a vehicle (five steps, two related entities)
• create a topic (four steps)
• create a topic (four steps, dynamic step navigation)
• create a topic (four steps, redirect after submit)
• upload a photo (three steps, handling of file uploads)
• The source code of this demo is available at https://github.com/craue/CraueFormFlowDemoBundle.