Use cross-platform 'ps' for test_multiprocessing

This fixes _get_children() on OS X.

bug 1205367

Change-Id: I296ea18dbd601f18fe7367b42bf5aecd9ccf9646
Allow insecure=True to be set in swiftclient

Currently when we instantiate a swiftclient.Connection we can't pass in
the insecure keyword arg. This means environments which have self-signed
certs might have trouble talking to auth/swift. This fixes that
situation and allows SSL certs to be ignored.

Change-Id: I9663ed333e93529beba4a0736d3b9207bd4f150d
Merge "Allow insecure=True to be set in swiftclient"
Merge "Use cross-platform 'ps' for test_multiprocessing"
Rename requirements files to standard names.

Change-Id: Icde92cdff054f8c1efb4a518ab7cf166a8eb791a