Adding .gitignore and .gitattributes files.
Adding a method that returns a List<Long> of the ids for the Intelligence for a given Dashboard.
Adding a method that returns a Map<String, String> with the details of an Intelligence like we do with Resources.
Adding a method with which we can set the value of an Intelligence.
Updates for the Sensorflare Java Client.

1. getApiCallResponse() now checks if the request was ok and either returns the response string or response error string.
2. Added method for PUT requests and refactored common POST and PUT request code to doPostorPut().
Adding methods to support DELETE requests.
Update changes in /api/dashbords in getDashbaords(). Also added a method to return the details of a given dashboard.
Return an empty List<Long> instead of null if the current Dashboard doesn't belong to the authenticated User in getDashboardIntelligence(Long).
Merge pull request #1 from feugatos/master

Additions to the SensorFlare Java client.