Fixes #300 - Adds "get this app in your city link"

- Adds link in footer for directing users to github repository and
ohanapi.org.
- Adjusts padding of paragraphs in footer to only add padding on the
top so as to not double up padding against each other.
- Removes “This website is a” text from footer as the current website
is implied.
- Wraps the google translate drop-down in a paragraph element so that
it participates in paragraph-applied styling in the footer.