Basic functionality done
Making changes to all pages
Archive got left out
Cherry picked this change to fix archive pages
Small change to article header.
Yosemite refer
Tuning the header logic across pages.
Forgot the body-background kit file. Now cleaning up flag files.
Section title color
Switching back to using the img tag because I think the background method breaks in IE. Hopefully we can implement retina versions with this.
Merge branch 'header-redesign'

Conflicts:
	archive.kit
	css/styles.less