sidebar: Add spinner to instructionList

https://bugzilla.gnome.org/show_bug.cgi?id=731068
route: Add via points support

Add support for adding, removing and modifying
via points in route.

https://bugzilla.gnome.org/show_bug.cgi?id=731068
sidebar: Add via points support

Add support for dynamicly add and remove via points to
the route search interface.

https://bugzilla.gnome.org/show_bug.cgi?id=731068
sidebar: Add indications about distance and time

Add a new row in the sidebar forinformation about the
estimated time for reaching the destination and the
distance to it.

https://bugzilla.gnome.org/show_bug.cgi?id=731068
mapView: Change route path width and color

The routing path now is blue and the width is set
to 5px.

https://bugzilla.gnome.org/show_bug.cgi?id=731068
Add new icons for destination points

https://bugzilla.gnome.org/show_bug.cgi?id=731068
routing: New markers for turnpoint

These markers are shown if a turnpoint is a stop.
The markers are draggable and after drag is finished a
new route is calculated and shown.

https://bugzilla.gnome.org/show_bug.cgi?id=731068
routing: Show marker on instruction selection

https://bugzilla.gnome.org/show_bug.cgi?id=731068