MyTableModel: Add basic very support for editing cells.
MyView: Add getManualEntryCheckBox method.
MyController: Add item listener. 
Basic implementation of the item listener prints information to console.
MyController: Toggle table editing. 
Also add a clear table action command.
MyTableModel: Update clearArray method. 
This will now use the fireTableRowsDeleted to update the table. 
Additionally this also checks that the array actually contains data
before attempting to clear it.
MyView: Add 'clear rows' menu item. 
This menu clears all data from the table arrays.
MyTableModel: Add removeRow and removeArray methods.
MyController: Update to use new removeArray method.