change slogan
add p below header, move content up from below fold
update illustration texts
stub in the who's got openplans section
add who's-got links
stub in choose map-type grid
add plan type illustrations
add map flavors page
add screenshots and links to map flavor page
add philly blurb
add compare maps button
better screenshot size/compression
HOTFIX: update meta info to match new slogan
minor copy changes per fkh feedback
refactor Shareabouts page
Merge pull request #113 from openplans/staging

new/revised product pages (map-flavors, index, shareabouts) for map-specific plans