Access control documentation: Create group and project Contains short documentation on the 'Create group' and 'Create project' capabilities with links back from the command pages. Also includes a formatting fix in the 'Create account' capability. Change-Id: Iff883cbbbd4368703d5372012c205e72083f4248 Signed-off-by: Fredrik Luthander <fredrik.luthander@sonymobile.com>