Update KloudBuster Image to v4
Update KloudBuster Image to v4

name: kloudbuster_v4
image name: kloudbuster_v4.qcow2
image-url: https://cisco.box.com/shared/static/23gklckv8eawyhw0x8yfrc5vcf0kvpad.qcow2
(please copy to http://storage.apps.openstack.org/images, and remove
the old kloudbuster_v3.qcow2 image)
hash: 4eec3a8c954121fa89774fd1b192242b (same as in the patch)

Change-Id: Id3ae7bc68bb52c5ee742cffc96725ec3d50b22d0

stackforge/apps-catalog,stackforge/apps-catalog,stackforge/apps-catalog,stackforge/apps-catalog