impl/EZP-22111 As an end user I want to see a place list on a map

## Description

The goal here was to get the places of the place list view displayed on a Gmap. A new button has appeared to display the view which is hidden  by default. If the list is sorted by distance, only the places shown in the list will be displayed on the map. The map's center is defined by geolocalisation.

## Link

Specifications: https://confluence.ez.no/display/PR/Places
Jira: https://jira.ez.no/browse/EZP-22111

## Screenshots

Here we can see the page with the map hidden:

![screenshot from 2014-05-05 10 54 29](https://cloud.githubusercontent.com/assets/5558766/2876825/fdfaa2b8-d43d-11e3-8476-1eacdb3faf0d.png)


Here we can see when the map is displayed, when we click on a marker an infowindow with the link to the full place page. We also display the name of the place by passing the cursor over the marker.

![screenshot from 2014-05-05 10 55 38](https://cloud.githubusercontent.com/assets/5558766/2877190/9ca943d6-d445-11e3-990a-106c4083a38c.png)


When we change the places to be shown with the distance filter, the map will be updated with the number of place that has to be dispalyed (here one place for 10km distance).

![screenshot from 2014-05-05 10 56 21](https://cloud.githubusercontent.com/assets/5558766/2877194/a62a5c56-d445-11e3-8cef-0f9e9fb6eccf.png)

## TODO

Currently one thing from the specification is missing, it's the main image in the marker's infowindow.