Automatically normalize fields to maxlength

[zachleat]

Right now politespace truncates the value to the maxlength. This might be unintuitive.

It may be more intuitive if the maxlength value represents the total length without whitespace. Then the maxlength would be the same as the total length the user would be allowed to type into the field.

grouplength = 2
maxlength = 5

Right now the user would be able to type in 5 characters, but the value would be truncated to 4 with one space on blur.

It might be more intuitive if the user could type in 4 characters, and the script dynamically changes the maxlength while the user is focused.

[zachleat]

Fixed by 0f2850a