Open Stack

Hi,

I have linked the glance configuration tables for grizzly to the Compute 
Admin Guide's "Configuring Image Service" section.

This is a pretty shoddy way to do things, in a big list of tables. 
However, as of right now there is pretty much no reference to 
configuring glance anywhere that I could find (please tell me if 
wrong!), so I see this as an important starting point. At the least, it 
will make sure the helptext for every option is available to google 
searches.

Please review at:

https://review.openstack.org/#/c/28903


Obviously, this will be superseeded by our doc restructure work, but I 
wanted to get something out for Grizzly.

Regards,

Tom