The complete source code of atom feed module taken from svn repository.
No changes done on top of this code

Signed-off-by: Sateesh Kavuri <sateesh@mobilitas.co>
Made changes by enabling DataPoint object to be store in the database
and also added webservice classes to expose the /changes method to
clients

Signed-off-by: Sateesh Kavuri <sateesh@mobilitas.co>