doap category apps
doap: add <programming-language>
AppData: Change example from Wi-Fi to Hotels

A search on http://taginfo.openstreetmap.org/tags/amenity=wifi
shows that there are only 115 such tagged places on the whole
planet, so the chance of finding one nearby is very slim.

https://bugzilla.gnome.org/show_bug.cgi?id=734086
MapView: Use properties directly

We want to use the gjs property directly instead of the get/set
wrappers. This patch makes MapView only use properties.

https://bugzilla.gnome.org/show_bug.cgi?id=734078
MapView: Use kinetic mode

With kinetic mode turned on Maps feels more smooth.

Thanks to Dario who stumbled over this property.

https://bugzilla.gnome.org/show_bug.cgi?id=734078
Updated Greek translation
Add High Contrast Icons

Provide high contrast version of project logo.

https://bugzilla.gnome.org/show_bug.cgi?id=707287
Updated Basque language
Updated Spanish translation