CLOUDSTACK-7832: Move some job db update and item purge to
    completeAsyncJob transaction to avoid MySQL deadlock.
CLOUDSTACK-7833: VM Async work jobs log "Was unable to find lock for the key vm_instance" errors as warning
systemvm: Prefer TLS over SSL in apache, POODLE workaround (CVE­2014­3566)

Just prefer TLS over SSL in apache configuration in systemvm

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
(cherry picked from commit 88acc9bd53cbf6f8896d32576f916c20704a3403)
Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
CLOUDSTACK-3608 removing duplicate entries, IDs not saved anywhere else hence safe to remove