facebook, statusnet and twitter: Now shared messages are clearly marked with the name of the original poster
twitter: When a post with a picture failes than the post is repeated without a picture
fromgplus: Under certain circumenstances "fromgplus" generates an empty post that is blocking the cron hook - so now messages are mirrored anymore.
Merge pull request #144 from annando/master

facebook, statusnet and twitter: Now shared messages are clearly marked ...