appnet, fbsync, statusnet and twitter: Now a parent is provided in the notifications so threading of the mails will work.
appnet: This should mostly prevent picture posts with two links to the same picture
pumpio: prevent a warning message because of a missing parameter
statusnet: Bugfixes: Repeated messages weren't always displayed correctly. When answering to posts, sometimes wrong nicknames were used.
Merge pull request #209 from annando/master

appnet, statusnet and twitter: Now a parent is provided in the notifications so threading of the mails will work.