Updated git submodules

Updated git submodules

Project: sdnc/northbound master 45ac56ef4f49b57bee4aa2cd52e4e41618ae2251

Ignore ModifiedNodeDoesNotExistException on delete

When trying to deleteVnf from operational or config tree, if a
ModifiedNodeDoesNotExistException is cause for commit exception
it means that the data you are trying to delete does not exist.
So you wanted it gone, it's already gone ... log a message at
debug level but don't fail the transaction.

Change-Id: Iea0f4e78522cc2f437843e2b17080855cd314ea6
Issue-ID: SDNC-137
Signed-off-by: Dan Timoney <dtimoney@att.com>