JavaScript router example working. (calling javaScript from java)

Note that these files will be removed, but interesting to keep them in one commit at least
Getting geoTweet's recount by location. Now it's possible to get something like counter.recountGeoTweets() => {madrid=>34, barcelona=>20}

3 changes:

- Function in GeoTweetData for db query
- Auxiliar function in AvaibleLocations which return a location as a String
- new class: GeoTweetsCounter with function "recountGeoTweets"