Add documentation for iLO driver(s)

This commit documents the information on enabling and
configuring iLO driver(s).

Change-Id: I596b1c5631438bed783bf94df1fa92190b9ba0fd
Fix E131 PEP8 errors

Fixes files with the following error:

    E131 continuation line unaligned for hanging indent

and enables the check in tox.ini.

Also enables the E113 check (unexpected indentation) since it seems
that was fixed coincidentally with other previous changes.

Change-Id: I9270e5df257e12dc903689d8eb6fb03be01c034b
Merge "Fix E131 PEP8 errors"
Update doc headers at end of Juno

- remove note that Ironic is incubated
- remove statements about Icehouse being beta quality
- add note to deploy/install-guide that it refers to Juno release

Change-Id: I1fb7059bdd01d2bd9a6d20c8f131d51608188451
More helpful failure for tests on noexec /tmp

When tests are run with a noexec /tmp they may can fail with a
not-so-clear error message. Making this more clear.

Closes-Bug: #1359463
Change-Id: I67086c960dd249a88680958a3f8aaba54db1e691
TestAgentVendor to use the fake_agent driver

TestAgentVendor tor use the fake_agent driver and not the fake_pxe one.

Change-Id: Ibcc77384f4d220759caa3cf63088c559fa4a4f69