Fix missing date in changelog -- again!
Fix missing date in changelog -- again!

credativUK/vdirsyncer,untitaker/vdirsyncer,hobarrera/vdirsyncer,credativUK/vdirsyncer,untitaker/vdirsyncer,tribut/vdirsyncer,untitaker/vdirsyncer,hobarrera/vdirsyncer,tribut/vdirsyncer