1.3.6 & SendCampaignsCommand

@frm.mwz - because that patch has been released after, that's mainly the reason :D
I am preparing another maintenance release though, and that'll include the above fix.
Internally i had a release but didn't make it public because right after that i had to add some new features and decided to wait, so upcoming maintenance version, that is , will come with lots of fixes.