Add a script for the tour 36.
Add a script for the tour 41.
Add a script for the tour 44.
Add a script for the tour 48.
Add a script for the tour 56.
Add a script for the tour 58.
Add a script for the tour 60.
Add a script for the tour 61.
Add a script for the tour 70.
Change visibility of the function step.
Add a script for the tour 71.
Merge pull request #2 from hamburgerkid/develop

Finish all the tour exercises.