Changed to formal "Sie"

this fixes #51

Signed-off-by: René Meye <rene@meye.md>
Order Result overview be order of answered questions

Signed-off-by: René Meye <rene@meye.md>
Extracted StaticRandomized Answer Selection

Signed-off-by: René Meye <rene@meye.md>
Changed type of Reply.

Now, each reply marks if it is voted as correct or wrong. So the system knows which Answers had been presented to the user.

Signed-off-by: René Meye <rene@meye.md>
Added Markdown support for Tests

This fixes #46

Signed-off-by: René Meye <rene@meye.md>