Point to new Mapzen PSV routing endpoint.
Merge pull request #158 from codeforamerica/improved-routing

Point to new Mapzen PSV routing endpoint.
WIP
Handle overnight times & a for am
Cleanup structure of servicewindow defaults.
WIP
Add speed, layover, and hourlyCost as top-level settings.
Add an apply-to-all button, and hookup events.
Round of styling.