Cannot view detailed image with empty name.

After creating an image with empty name (only space characters in the name),
and attempting to view it, the view crashes.
Glance is not returning the name X-Meta-Header on the response if the
name is not set or empty.

Change-Id: I0c55e302d22552e932bdd32e10d00a103d252429
Closes-Bug: 1261367
Merge "Cannot view detailed image with empty name."