Otherapi

Changes:
1. The major change was that we forgot to do error handling in case get_park(hike['park']) failed in otherapi() in views.py. I called get_park() earlier so that we could catch the exception before sending it onto experience.html.

2. Added more information on template for hikes (difficulty variable, time, distance).

3. Fixed some typos in description.

4. Added quick code we can uncomment during presentation for quick Voldemort demo in case of bad connection to API. 

(5. Started doing dynamic creature population, but realized we'll need to sort them by 'danger rating', so that's something for another time.)