CRM-15524 - Support addSetting in snippet mode
CRM-15524 - Support adding scripts, styles, etc to page header/footer regions in snippet mode
CRM-15524 - Add 'ajax-snippet' region
CRM-15524 - Move static js resources to the html-header region so they don't reload with ajax page refreshes
Merge pull request #4440 from colemanw/CRM-15524

CRM-15524 - Support adding settings, scripts, etc in snippet mode