Modify DateTextBox to show drop down automatically on focus or click, and to close it when you select a date, focus on another field, or click in a blank area of the screen.
Modify DateTextBox to show drop down automatically on focus or click,
and to close it when you select a date, focus on another field, or click
in a blank area of the screen.

Fixes #3516.

Still need to update InlineEditBox to not display save/cancel buttons
for DateTextBox (or alternately put them on the right, but that precludes
the use of validation messages, which are important
since non-mouse users need to enter dates directly into the <input>,
rather than picking them from the calendar).

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@9297 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful