Adding urls

[vallettea]

this is what is to be done:

• [ ] add 6element logo that point to /
• [ ] once a detailed view is selected the go back arrow works but the url is wrong
• [ ] once a url of detailed place has been call all routes point to it always until the server is restarted
• [ ] adapt the map when url contains a bounding box
• [ ] two calls of the route / after search
• [ ] the points are not loaded after zoom or pan when starting from the url