asc_bootstrap - setting up AddToCalendar btn to display correctly in for loop when multiple event dates are listed, adding site name and email vars to.theme so that events can use them

asc_bootstrap - sass updates, add link to contact form to contact header, fixing UTC bug when comparing start date and end date and adjusting for daylight savings time, adding for loop around event card info for future multi-date events, adding social media to news and events