Objects and loops, hooray!

Instead of multiple calls, let's clean up a bit.
1. Put the teams into a single object.
2. Make it clearer what data we have in there: city and name instead of
address and title.
3. We don't need to declare "html" each time, since the data's the same
as the title for each one.
4. Loop through the object to make the call to the pin creation
function.

Okay, that saves us about 40 LOC.
Change from h1 to span.team-name

Semantics, folks.
That, and some formatting.
Clean up CSS

Remove unused rules, and make the .team-name rule more specific so it
doesn't get overruled later.
Formatting JS

Make it pretty-like.