[qmf] Update version
[qmf] Don't enqueue the preferred body for fetching twice

For mutipart/alternative mails the code introduced by commit:
a7096490c094608239918ebbdbcca8003e81a8de, enqueues the preferred body part
twice when the content size is bigger that maxMailSize, causing the
part to be written twice.
Merge pull request #30 from nemomobile-packages/message-parts

[qmf] Don't enqueue the preffered body for fetching twice