Update for keystoneclient 0.7.1

Regenerate cli chapter.

Change-Id: I6d54d779482e99d7f4cd544bf2facc8fb3e53974
Clarity Patch amend third

Modify space, word order, and lines for Create and Manage Images section

Change-Id: I8fb4571df2fdbf39abe0a141a0a9935aeaa0df23
backport: none
Closes-Bug: #1298181
Merge "Clarity Patch amend third"
Merge "Update for keystoneclient 0.7.1"