Add an option to inherit locations from the date/time applet

The Date/Time applet on the panel has a feature to display time from different locations.

It would be nice to add an option to the weather indicator to use the same locations than the date/time applet. This way, adding, removing or selecting a location in the date/time applet would do the same action on the weather applet.

USE CASE:
John is travelling to another place, he adds his destination to the clock and selects it to be the default. The location is added to the weather indicator and the weather of the destination is displayed on the panel.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: indicator-weather 11.05.31-0ubuntu1
ProcVersionSignature: Ubuntu 3.0.0-5.6-generic 3.0.0-rc7
Uname: Linux 3.0.0-5-generic i686
Architecture: i386
Date: Tue Jul 19 09:33:13 2011
EcryptfsInUse: Yes
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.utf8
 SHELL=/bin/bash
SourcePackage: indicator-weather
UpgradeStatus: Upgraded to oneiric on 2011-07-12 (6 days ago)