Merge pull request #23 from mccollek/master

Columbia, SC Openhack night
Match Rakefile with actual usage

This didn't work well for me when using `NAME='Iowa City, IA'`, so I
fixed it
Add Iowa City
Merge pull request #24 from benjaminoakes/master

Fix bug, add Iowa City
updates with nyc meetup info
fixes typo
juicy green logo, subtle gradients for jumbotron and semantic wrapper div
mint-colored favicon
minty jumbotron text
subtler header and body text colors
borders and hover styles for city links
subdued footer colors, returned Raleway as the header font as it was removed by accident
added padding to lists so that bullet points do not float to the left
removed border from images
added city slug as id to city list item, to be used so that city pages display their menu item as highlighted
added iphone arrow to city links
added offset1 class to main content well to put space between it and the city links
fancy green pattern for jumbotron
removed offset1 class from main content well
iphone-ish style for city list