ChamplainView: Move the key-press event to view
ChamplainView: Move the key-press event to view

Bind the key-press event to the view actor instead
of the kinetic_scroll actor. This will allow users
of GtkChamplainEmbed to use the pan and zoom bindings
from their application.

https://bugzilla.gnome.org/show_bug.cgi?id=738849

StanciuMarius/Libchamplain-map-wrapping,StanciuMarius/Libchamplain-map-wrapping,StanciuMarius/Libchamplain-map-wrapping,GNOME/libchamplain,GNOME/libchamplain,StanciuMarius/Libchamplain-map-wrapping,StanciuMarius/Libchamplain-map-wrapping