Feedback and repairs

We got a lot of useful feedback from the huge user traffic and we have fixed most of the problems aswell:)

• We added a notification that currently, we dont support IE 9 and down
• We changed the wording on the view questionnaire page. Its not hashtag anymore. Its simply: "The students must write slot to find your question" We hope this makes it clear for the lecturers
• We also rephrased the student side of find questionnaire page
• We improved "about us" page
• We hope to get "getting started" and "front page video" ready tonight