[Openstack-i18n] admin-guide-cloud is converted to RST

The Cloud Admin Guide resource is now migrated from XML to RST, admin-guide-cloud is therefore now fully RST. The guide currently has no full translations and will now get revised - so don't give it any priority for now, Andreas -- Andreas Jaeger aj@{suse.com,opensuse.org} Twitter/Identica: jaegerandi SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) GPG fingerprint = 93A3 365E CE47 B889 DF7F FED1 389A 563C C272 A126