Schedule

Implements a schedule, as well as an interface for admins to insert/change/delete events from the schedule. 

Caveats (see newest issues):
* The schedule is not tied to the current hackathon; that can be added at a later time easily.
* The HTML scaffolding is done using Foundation; the reason being that the site did not work in the latest Bootstrap commits and I wanted to get going quickly. 
* The checkboxes in the forms are causing Meteor to have to rer-ender each time a schedule change is made. This is low-priority, obviously, but a modal asking if the admin wants to notify the world *would* be better.