Arrange trade tab doesn't sort numerically

[Zerotan]

If you arrange the trade tab by, say, offer, it sorts alphanumerically. This means within the same good, the numbers aren't sorted.

eg

Gold 16
Gold 160
Gold 18
Gold 2
Gold 20
Gold 20
Gold 200
Gold 205
Gold 21
Gold 215
etc


Sorting the number numerically will make it infinitely easier to compare the offered goods in ascending value.