The common functions are mostly removed and these make sense to
be part of the __init__.py. This also simplifies imports and
eliminates odd import errors due to duplicated names and masking
the names e.g. (and keystone.server.flask needs the functions
from keystone.server.common):
keystone.server.flask.common
keystone.server.common
Change-Id: Ie586fd45e10c8a1c8db3d9a64f949c97004814d9
Partial-Bug: #1776504