Closes-Bug: #1356531
1. fab task "install_storage_pkg_all" added to install storage
   on all storage nodes.
2. fab task "create_storage_repo" added to configure
   setup_storage.

Change-Id: I7c17ec23dae7a6670c76349fc311b8db78627e09
Merge "Closes-Bug: #1356531 1. fab task "install_storage_pkg_all" added to install storage    on all storage nodes. 2. fab task "create_storage_repo" added to configure    setup_storage."