Use snapshot success info to export whenever possible
Use snapshot success info to export whenever possible

By using the information provided by CreateSnapshots, the backup LU can
decide when to start or not start the instance, allowing exports to be
done for disk templates that do not allow snapshotting in all cases but
live exports.

Signed-off-by: Hrvoje Ribicic <be5828fca31f89218048bec4189e30a581aa65da@google.com>
Reviewed-by: Klaus Aehlig <4ce51de36d9068cd7db2eec1151e0f3f95419008@google.com>

mbakke/ganeti,bitemyapp/ganeti,ganeti/ganeti,bitemyapp/ganeti,leshchevds/ganeti,dimara/ganeti,yiannist/ganeti,yiannist/ganeti,mbakke/ganeti,leshchevds/ganeti,leshchevds/ganeti,dimara/ganeti,mbakke/ganeti,grnet/snf-ganeti,yiannist/ganeti,onponomarev/ganeti,grnet/snf-ganeti,ganeti/ganeti,onponomarev/ganeti,andir/ganeti,andir/ganeti,ganeti/ganeti,andir/ganeti