Replace 'getDropClass(drop.id)' with 'icon-drop-{{drop.exclusivity}}'

No need to create a special function just to perform this string
concatenation.  I've also changed icon-drop-semiopen to
icon-drop-semi-open to match the spec'ed API value [1].

[1]: https://github.com/azurestandard/api-spec/blob/ac3eadd3a7e3472642b401224241672424870558/public.json#L841
GetStartedCtrl: Get drop and route details from the API

I changed the UI a bit, shifting route name and frequency information
into a table to support drops that are on multiple routes
(e.g. D796361, 26 Mile Drop, in Alaska is on Y1 and Y3).  On IRC last
night (17:22 through 17:58 PST), Benjamin said that there's a
long-term goal of making routes back-stage only, but we're not ready
to do that quite yet.

Another option would be to have:

  Routes     <comma-separated route names>
  Frequency  <sparkline of drop['order-frequency']>

but:

1. It's easier to make the table, and
2. The table can show the current projections for route frequencies,
   which may not be reflected in the past trip frequency.

We also considered converting frequencies from day counts (e.g. "28")
to text (e.g. "monthly"), but Benjamin said day counts were fine.

I've shifted the "Fees" line to the bottom, because most drops don't
have fees, so they'll be a less interesting criterion for picking a
drop.  We considered dropping the Fees line for drops without fees,
but Benjamin thought it was good advertising to leave it in.