More iron-router, more map changes

Further changes to integrate iron-router with project.  Map now redraws
itself correctly, with appropriate button states and status message,
when you re-enter this window.  Cleaned out dead code related to old
template structure, before iron-router.

All setTimeout calls removed except for ones used for animation delays
and the one used to draw the map; the AmChart.onReady() function is too
unreliable in this environment, so a delay before calling will have to
do for now.