Added ability to email available times to others

I just completed a major feature that I've been working on for a few days now: The ability to email anyone a personalized link to your calendar, as well as available times that you select. This is kind of the inverse to sending someone your calendar link and having them go check out what times you're available. It takes some of the work out of their end. Next I want to add the ability for them to overlay their own calendar.