Cleaned up the comments.
Added setter for the current_time_ member. 

It will be used to change the starting time of day from within the
scenario editor.
Lifted CONTROLLER enumeration into the team namespace and made public.

It will be used by the editor's side setup dialog.
Support for defining the controller of a side in the editor.
Improved the time of day schedule menu.

Change the save state of the scenario when times are adjusted.
Load the default schedule into new maps.
get_area_by_id() method. Will be used in the SLF.
Put the new side setup dialog from Shadowmaster in full use.
area= SLF attribute support for filtering by [time_area]s.