lib/blag/rest.py: add /posts?start_eid as option
lib/blag/rest.py: add /posts?start_eid as option

RyanSquared/blag,ChickenNuggers/blag,ChickenNuggers/blag,RyanSquared/blag,RyanSquared/blag,ChickenNuggers/blag,RyanSquared/blag