Lenses added for ParkResult type.

Splices added for the ParkResult type using lenses. I'm sure this could
be done better but I couldn't form the type signature I needed..
Something like:

Monad m => ParkResult
  -> [Splices (HeistT n m Template)]
  -> Splices (HeistT n m Template)

Updated _search_result_content to match the changes and place the req'd
data into 'data' attrs instead of that hilarious JSON hack.

Updated Map js so that the maps should still be being generated.

Deleted all the HTML generating template shenanigans from the JS as
we're doing it the right way now.