Add some docs for the core object
Add some docs for the core object

prisacaru/firefeed,prisacaru/firefeed,prisacaru/firefeed,dieface/firefeed,googlearchive/firefeed,dieface/firefeed,googlearchive/firefeed,dieface/firefeed,dieface/firefeed,prisacaru/firefeed,googlearchive/firefeed,googlearchive/firefeed