allow calendricalTimeRange() to cross into the next day (overnight)

[cthien]

I want to use the plugin to set a time range where the user may wish to set the range from (let's say) 10pm to 5am. I would love to see the plugin provide a time option that crossed into the next day for the time_end picker, where time_end starts at the time set as time_start. (as it currently does), but the time range would go past 11:30pm, into the following day.

This is for a re-occurring time range, so I can't use DateTime Range, which is tied to an actual date and time. An example would be a control where the user sets an overnight time range she does not want to ever be disturbed during (never disturb me beween 10am and 5am).