- reverted: commit r1389 to execute a ImportMessageReadFlag() on 6.40 (CheckMapiExtVersion() was also incorrect)
- added: the read flag will be also be sent when executing ImportMessageChange(). This way the read flag is always updated, also in ZCP 6.40.

git-svn-id: https://z-push.org/svn/z-push/trunk@1411 b7dd7b3b-3a3c-0410-9da9-bee62a6cc5b5