fix navbar
navbar styling complete
no message
navbar styled (currently drawn off screen)
background styling
initial column/timeline styling, add element placement js file
fix timeline y-origin bug with css instead of js; add event icons; attempt to get popovers working (they don't yet)
fix js links; add bottom gradient; add extra popover/tooltip helpers
Merge commit '423ea86d2202b1eed35ea238a294b3e09e6afbb5' into basicBroc

Conflicts:
	app/css/rough-styling.css
	app/index.html