Change the order of latitude and longitude in the Location dialog.

Conventionally, one thinks of the latitude coordinate before the
longitude coordinate. Hence, it is quite natural to put latitude
before longitude in the dialog.

Also, I'm changing the tab order to cycle through the other fields as
follows:

City -> Province -> Country -> Latitude -> Longitude -> UT offset -> DST
-> Clear Fields -> Add City -> Update DB -> Remove City.

This seems more intuitive to me, since one would like to fill out the
particulars of the city before entering the coordinates. The previous
order was City -> Longitude -> UT offset -> ... which did not group
the fields quite naturally.

CCBUG: 341965
CCMAIL: mutlaqja@ikarustech.com
GUI: