Upstream distribute is dead and has been merged back into setuptools.
Additionally, enhancements have been made to both setuptools and pip
that mean we no longer have to carry hacks around versions.

Also, we don't need to install greenlet here. Order is respected in
requirements.txt.

Also, let's kill the pip_requires verbage.

Change-Id: Ia15c66d6a03522e804ff96fd6f8d81db00467a6e

The error was:

'import install_venv_common as install_venv' is a relative import

To fix it __init__.py was created and import string was fixed.

Requirements for hacking changed to >=0.5.6

Change-Id: I71aa7c7cb268c26aa00828306138a84b30289cb9

Rename tools/pip-requires to requirements.txt and tools/test-requires
to test-requirements.txt. These are standard files, and tools in the
general world are growing intelligence about them.

Fixes: bug #1179008
Change-Id: I033876ec304fea97c66365c16bcf0cccaa1d810e

In prep for moving the projects to requirements.txt and
test-requirements.txt, we need to have our legacy install_venv
codebase support finding requirements in the right place.

Change-Id: I0f300c6bb1792c81e2133a41a5631f2dd4c021ba

Also, remove the files associated with this that should not be pulled
from oslo-incubator any longer.

Closes bug 1179007

Change-Id: Id2e882837bdde51a60562e8cdd207c7ff0c88a6a

Include hacking in test-requires and disable any failing tests.
Once failing tests are fixed they can be enabled to gate on them.

Change-Id: Id6a228441ec94d5d0bee1dba05118bb35ecaa001

The eventlet repository has moved, so the bug url referenced
in the comment about why we patch eventlet needs to be updated.

Change-Id: I55abe0b6eb4c8e21fad15a10d6ec71d3b5a59e54