Merge pull request #1958 from lkbgift/master

Added Yeoman-Foundation generator
added magellan variables to _settings.scss
made padding a variable for magellan
removed reference about a single top-bar only
updated centered class reference
fixed typo on global page
Merge branch 'master' of github.com:zurb/foundation
Merge branch 'master' of github.com:zurb/foundation