Change the cloudkitty logo to use the official project mascot
Change the cloudkitty logo to use the official project mascot

Change-Id: I3dde6bafd5d0fb8ed896b4b7b712a36ed8b1b862
Closes-bug: #1682801

openstack/cloudkitty,openstack/cloudkitty,stackforge/cloudkitty,stackforge/cloudkitty