doap category core
Bump gtk+ requirement

We need GTK 3.5.6 for GtkSearchEntry, but we really need 3.13.5
for GtkEntryCompletion::no-matches
test_locations: don't warn if the current location is null

It's a perfectly legitimate condition when clearing the entry

https://bugzilla.gnome.org/show_bug.cgi?id=732728
Add Shahin Shahr, Iran

https://bugzilla.gnome.org/show_bug.cgi?id=721134
GWeatherLocationEntry: remove airports from the entry completion

If we have multiple locations (airports or weather stations) for
one city, just use the one closest to the city center.

https://bugzilla.gnome.org/show_bug.cgi?id=732315
Updated Brazilian Portuguese translation
Updated Greek translation
Updated Spanish Translation