Change rsync option from --delete to --delete-after to resolve the --delete-during issue

Resolving Rsync 3.0.7+ error

FATAL I/O ERROR: dying to avoid a --delete-during issue with a pre-3.0.7 receiver.
rsync error: requested action not supported (code 4) at flist.c(1947) [sender=3.1.0]

rsync version on workstation is 3.1.0
rsync version on node 3.0.6
Merge pull request #331 from koodough/patch-1

Change rsync option from --delete to --delete-after to resolve the --del...