Add "dataSent" boolean field to Period so we can track which periods have been sent or not
Remove unused method
Configure notifications to remind when timesheets need to be submitted.
Remove old NSLog
Move Saturday/Sunday buttons to start of list, since they represent the saturday and sunday *before* the weekdays, since timesheets are filed Friday for the previous 7 days
Generate CSV properly and make email contents be just so
Move Saturday to the front of the segmented view in period view since it's the first day of the logged week.
Populate defaults for Employees, WorkType, and WorkLocation