Update webpage

- Set up the Niagara Falls dataset properly.
  Note that it contains lots of duplicate data with the Niagara Region data,
  but it's not worth the time to solve this issue.
- Use a heatmap if user zooms out past the default zoom level.
- Show a custom message for Niagara Falls data when clicked.
- Cleanup code a little
Close #1 and close #3
Add dataset used in the latest version

- This dataset is based off the previous PlacesOfWorship dataset.
- Reason for using a new Fusion Table with this dataset was because I wanted to
  get the address data on a single line. It was easier and quicker doing it this
  way.
Another attempt at #4