WalrusAPI: move SessionHandler use into WalrusAPI
WalrusAPI: remove unused attribute
WalrusAPI: new attribute polling and last_id for polling automation
WalrusAPI: sexy polling initialisation
SessionHandler object: get last inserted id for selected table to poll
Polling controller: sexy polling initialisation
Dashboard controller: die for ajax call, a lot less process
Post model: get last posts for long polling
Front: latest inserted id isn't needed anymore
Script.js: longpolling is ok, need to be move in walrus.js with less step to do for user