Add close button

replace with tweet button
Merge remote-tracking branch 'simurai/close-button'

Conflicts:
	ui/wordpress.reel/wordpress.html
Wire up close button bot function a bit better

Still need to clear up the timeouts but now it will be hidden
when nothing is elected.

I also normalized how everybody gets references to the rangeController
a bit; I'll probably remove the wordpress component that houses the
flow next.
Merge pull request #12 from mczepiel/close-button

Add close button to header