CLOUDSTACK-7833: VM Async work jobs log "Was unable to find lock for the key vm_instance" errors as warning
if attach volume fails, destroy the VBD device
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>
CLOUDSTACK-3608 remove duplicate entries