Remove pool selection from "Add Monitor" page

Allow one to create a health monitor object without
any association. Add buttons "Add Health Monitor" and
"Delete Health Monitor" on pools table page.

fixes bug 1158602

Change-Id: I4d9abe378dc1ef2cf410f801ec1f480060de015a
Fix quota charts on the Resize Instance form

Also consolidate the template with _launch_details_help.html.

Fixes bug #1188631.

Change-Id: I5cfeccc7b7b3a4eb4027c41e3df2a99820b93706
Ensure flake8 runs with a valid settings file

The H301 check sometimes imports a file when trying to tell whether it
is a module. Ensure we run flake8 in a valid environment to avoid
any side-effects from this.

Fixes bug #1191748.

Change-Id: I35fdefcd8f4c465a89f884299a0a9f4a4c79a6f6
Merge "Fix quota charts on the Resize Instance form"
Merge "Remove pool selection from "Add Monitor" page"