Correct incorrect uses of "weight" and "weighting"

Also made some other edits to back-end versus back end
Back end is the thing, and back-end is the adjective

Closes-Bug: #1335423

Change-Id: I09fcf289788630b6f016aa5ee373068401c762cf
Author: Diane Fleming dfleming@austin.rr.com
Updated install guide glance verify section

I updated the installation guide glance verify section to include
some changes made to the install/configure section and fixed a few
other minor issues.

Change-Id: Icd379ed46ac2c712f1de0194cae60df29a015775
Implements: blueprint installation-guide-improvements
Updated install guide glance install section

I updated the installation guide glance install/configure section
to include some changes made to the verify section.

Change-Id: I574fb072b8edf63db5abea6d23c6a8dc4b3e6e69
Implements: blueprint installation-guide-improvements
Merge "Correct incorrect uses of "weight" and "weighting""
Merge "Updated install guide glance install section"