Skeleton of new-style clipper. Show entities from the existing trip trip plan in the clipper.  Split clipper into two panels, one for new places and one for existing places.
Add margin to results so save button doesn't overlap after scrolling.
Add a map iframe to the page and a proxy to send messages back and forth between the main clipper frame and the map.
Queue up map-drawing requests until the map has declared itself ready.
Clean up sending of page source between frames.
Add a header for the map iframe and make it draggable and expandable.
Draw result entities in the clipper map too.
Do two-way queueing of messages since it's non deterministic which iframe will load first.
Share selection state between frames.  Fix the dragging issues by putting shims over content iframes; the jquery-ui iframeFix option only adds static shims to iframes on the page, not ones that move with iframes if the iframes are part of the moving element.
Make the map manually resizable.
Make sure the map stays fixed after resizing.
Merge branch 'master' into new-clipper
Highlight result markers when hovering on the left panel.
Clean up selection of clipper results.
Allow multiple clipper results to be selected simultaneously.  Add stroke when selected.
Styling tweaks for clipper.
Add a hack directive to work around Chrome svg rendering bugs.
Emphasize trip plan entities on hover to be consistent with the behavior of result entities.
Use result letters instead of images for clipper results.
Add two-day syncing of state between map and clipper.  Add a basic infowindow to trip plan entities.