User model: added GeoLocation to the model (latitude and longitude)
Streaming listener: saving to db

1. geo tweets
2. hashtags
3. links
4. tweets
5. users
GeoTweetData with 2 news functionalities

1. get (Date)
2. get (Location, Date)
New functionality on AvaibleLocations: "asLocations(String[])"
New file to repository: TweetController (under controllers/api)
Create class "ParamsHelper" which could be very useful if we work with arrays in the params; and if we don't... well it's pretty cute.

In a action method of a controller, we create one paramsHelper using the following "ParamsHelper(request().queryString())"
UserController: doing queries with genre, area and combination of both
UserData adapted to queries over non-pre-defined-areas; I mean, now is possible to query over latitude, longitude and radio.
Get /api/tweets to routes file
trifle (pijada) in UserController: show a user by id accepts the mongo's id or the twitter id.
minor refactor: renamed function to "getTweetsWithUser" to "getTweetsFromUser"