docs.o.o redirections

Remove now obsolete redirections since redirectmatch works

Redirect  http://docs.openstack.org/identity/api/* to
http://api.openstack.org/

Change-Id: Idf7f0685ca7696304a07dc5d18a64e125edb5624
Closes-Bug: #1221287
Added project security groups/rules information.

Added dashboard and CLI pages for managing project security groups and rules.
New pages added into existing 'manage projects' pages as xi:includes.

Change-Id: Ic7ae98fc3d2e09e81de61e100f76de1065f775ff
Partial-Bug: #1231243
Merge "Added project security groups/rules information."
Merge "docs.o.o redirections"