[0.11.11] Logistics requests text box broken.

[Travis_daily]

If the text box has only a zero, such as when deleting the default stack request, attempting to delete the last zero results in the requested stack size defaulting to 20,000.

The typographic pip reverts to the farthest left location after every keystroke, i.e. attempting to type "251" results in the requester chest asking for "152" items.

[kovarex]

Thanks for the notice.

a) The cursor (pip) isn't reset after every keystroke.
b) The default value for non number input (empty input included) is now zero, and not the 20 000