- Added a Identifier to the Data structure

- Added a Event for when the user clicks a timesheet entry, the consumer app can get the Identifier of the entry and do something with it (show a detail popup and such)

- Added Zoom Controls

- Added Week/Day Display Controls

- Updated the controls/calendar/timesheet cells calculations

- Added validation so the date range is not greater than seven days

- Added start and end date inputs so the calendar grid is rendered regardless of data for timesheet entries