add map view of past journeys. unfinished and unreferenced.

lib/Travelynx.pm

lib/Travelynx/Controller/Traveling.pm

public/static/leaflet/images/layers-2x.png

public/static/leaflet/images/layers.png

public/static/leaflet/images/marker-icon-2x.png

public/static/leaflet/images/marker-icon.png

public/static/leaflet/images/marker-shadow.png

public/static/leaflet/leaflet.css

public/static/leaflet/leaflet.js

templates/layouts/default.html.ep

templates/map.html.ep