TODOs to close the SS2018 lecture

[fmaussion]

Before we can close this course, we would like to:

• include @Lina19911009 's and Andrea's changes that did not work because of git problems.
• Ask Wolfgang to review the intro and Andrea's work
• Ask Georg to review @LenaMarieMueller and @tommytomato ' post
• Tutors will write a comprehensive blog post explaining what we did and a discussion/answer to the useful anonymous student's feedback
• Grade everyone's contribution

Planned ending of course: end of September