Add tox and flake8 support

This is the first of many commits to help make the code more PEP8
compliant.  This patch just enables the tools, but no actuall code
changes yet.

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Flake8 E121 fixes

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Flake8 E123 fixes

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Flake8 E125 fixes

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Flake8 E127 fixes

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Flake8 E128 fixes

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Flake8 E122 fixes

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Flake8 E225 fixes

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Flake8 E226 fixes

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Flake8 E241 fixes

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Flake8 E261 fixes

Signed-off-by: Paul Belanger <paul.belanger@polybeacon.com>
Merge pull request #754 from pabelanger/temp/tox

Add tox and flake8 support