Implements cache clear rake task
Increases number of grid rows to 6
Fixes broken logic for track page cover photo fallbacks
Merge branch 'master' of github.com:StartupWeekend/program-site-base
Uses seo_title vs site.name
Fixes bug with using a SITE_URL default
Merge branch 'master' of github.com:StartupWeekend/program-site-base
Merge branch 'master' of github.com:StartupWeekend/gsb-2014-wagon