Release Stork v1.1.1

Improvements

• Allow snapshots to be restored to different namespaces (#71)
  • When creating snapshots users need to provide comma seperated regexes
    with "stork/snapshot-restore-namespaces" annotaion to specify which
    namespaces the snapshot can be restored to
  • When creating PVC from snapshots, if a snapshot exists in another
    namespace, the snapshot namespace should be specified with
    "stork/snapshot-source-namespace" annotation

Bug fixes

• Use cache for node infomation to prevent timeouts during scheduling in large clusters (#99)