Added addToSlot() method to Experiment class
Added getSlot() method to Experiment class
Added flattenCalendar() method to Experiment class

Flattens the 4-dimensional calendar array down to a string that can be
written out
Added getSubject() method to Experiment class
addExclusionEmails() no longer implodes

Call setExclusionsEmails() separately to implode to writable string
Added removeExclusionEmail() method to Experiment class