functional tests should be grouped with other tests (unit and
integration tests). as part of this commit the "common" module
was renamed to just "base", this was done for simplicity.

the post_test_hook.sh file was also copied to the functional module
since it should live there. a separate change to the infra repo
will be made to call the new location, once that is merged we
can remove the old one (a new change will also be posted for that)

Needed-By: I49d54f009021d65c1ae49faf6b3f0a7acdadd7b3
Change-Id: Ie8c334f6223373b8e06df8bd8466500d2a2c8ede

One get_opts method can work instead of
get_list_opts and get_show_opts both.
Remove mutable default value.

Change-Id: I9c5683d416f0f3ed4989abab6f152b0341e30a4f

the rest of OSC set commands do not show the resource after it has
been updated. unless the update fails then we report back a failure,
otherwise the user should assume everything went fine.

Change-Id: I2bd4188450c3853b4a1bc25f80fc9450cda32bdd

devstack now defaults to image api v2, but osc does not support
v2 image create. set the functional tests to use v1 for now
to unwedge the gate.

Closes-Bug: #1496337
Change-Id: Ia02ed761446b8de52c932a424b9c423691ebcceb

This patch includes functional tests for image set and it includes
a change to use the OSC utils.format_dict method to format the
properties.  This will give a more user friendly format to the image
commands and it gives a more consistent testable format to the
output.  Instead of:

{u'a': u'b', u'c': u'd'}

The user will see:

a=b, c=d

Change-Id: Ib396316586ffc5dbab231064d5b6dc9425507934

Change-Id: I30b219bc3393fcb197bda266125dcfb5c8780a3e