Progress for repeatable events:

Added a new dialogWindow type for creating rep events, days to display
event will be checkboxes which are converted to an integer when the
create button is pressed and the addRep methods are called.

ControlPanel
 - added addRep method for calling the addRep method in the lister

DialogWindow
 - new checkbox/labels for rep event window, added behavior for 
 confirm button 
 
Todo:

Remove "date" field from the rep event window, replace with checkboxes?