make article cards visually more distinct, make entire card clickable link
more styling of article cards, smarter hover states, better typography
added fallback image support for compact articles without assets
refactor markup and styling of full article metadata
improved styling of blockquotes
more small tweaks and style switching on the body between article and index views
in which Sean learns to use media queries and properly close his CSS declarations
finesse the relative font sizing of headlines and body copy for articles on small screens
Merge remote-tracking branch 'origin/master' into style-improvements-v2

Conflicts:
	index.html
Merge pull request #2 from SCPR/style-improvements-v2

Style improvements v2