update vodpile: sort videos by ascending time.

When two video segments have the same pretty-printed title, this makes
them appear in the order broadcast.
update title formats to support "Code S 32[gang]" style titles.

Group E match/set videos were uploaded with a new title format.  This
fixes parsing for those titles, so that they appear in the dropdown.
demodata: fix comment to make pasting the command line easier