- Cleanup some grammar and adjust some wording usage.
- Add more docs to utils about what should and should
not be used.
- Add more engine docs about how each one is used and
tips and notes about each.
- Line length adjustments (might as well keep it somewhat
in the normal range of what openstack code expects)
Change-Id: Ice6711f00e2b50e0bee777388c0555d79cc6e1b0
f2c82f0929