Implement simplest display on google maps

[lexaux]

For the start, we need to simply show markers of the shakes on the Google Maps https://developers.google.com/maps/documentation/javascript/ see here.

We need:

1. A simple page with HTML
2. A RESTful web-service, which takes coordinate rectangle (of what's shown in Maps now) and would return array of shake detectionsd
3. JS logic to display these as markers for now.;