Updates .gitignore

Remove files we don't generate in the sources.

Closes-Bug: #1256043

Closes-Bug: #1257279

Change-Id: I18552182958448baa040c988b02affc231cbf62b
Merge "Updates .gitignore"
Update cinderclient to skip the additional GET during create

With change https://review.openstack.org/64945 cinder V2 API now
returns volume details. Updated do_create in cinderclient
to remove additional GET call.

Change-Id: I2a36f2fa865b52f228bad44e0a9c67d49228321e
Partial-Bug: #1265893
Remove dependencies on pep8, pyflakes and flake8

They should be determined by the hacking dependency
implicitely.

Change-Id: I5c077e4b8e5985e86af3229a58aa475ac668b5e1