Move test_shell.py under tests/unit/

Looks like test_shell.py got left behind when
the unit tests were relocated under tests/unit.
As a consequence they weren't included in tox
runs.

Change-Id: I93435e6141c5e3ad4a9403626f226d7c760cbd7c
Remove testtools.main() call from tests

There is no testtools.main() at all (this was a
unittest.main() before). Let's remove this unused
and non-working code.

The following code can be used if someone needs
to start tests manually:

    python -m unittest <test_file.py>

Change-Id: Id5162ac73825584df6c23dbe68786ff3355fc6ae
Fix Python3 bugs

This patch fixes three issues that were found running
functional tests with Python 3:

1. python-requests sets 'application/x-www-form-urlencoded' as
   content-type if the input is not a string object and no
   content-type is given.

2. Encoding of the headers is now only done if required. This
   prevents comparisons between unencoded headers and encoded
   prefixes and avoids unnecessary forloop-iterations.
   One unittest was extended to ensure it works for unencoded
   and encoded headers with or without the prefix.

3. Functional tests recently switched to using byte data for
   testing, thus the comparison needs to be a byte object as well.

Change-Id: I035f8b4b9c9ccdc79820b907770a48f86d0343b4
fixed several pep8 issues

  * E111 indentation is not a multiple of four
  * E128 continuation line under-indented for visual indent
  * E265 block comment should start with '# '
  * E713 test for membership should be 'not in'

Tested with pep8 version 1.5.6 (2014-04-14).

Change-Id: I7f85c143d463c501a0df20724362ad5c0f2d4dde
Fix wrong assertions in unit tests

A couple of assertTrue in the test_swiftclient.py
unit tests should be assertEqual. Also, the expected
values now need to be bytes literals.

Change-Id: I7cc1bd60d9ba82d1a28fbae2e1243d3c799451bd
Merge "Remove testtools.main() call from tests"
Merge "fixed several pep8 issues"
Remove extra double quote from docstring

The extra " was visible on

  http://docs.openstack.org/developer/python-swiftclient/swiftclient.html

Change-Id: I7d61c8259a4f13464c11ae7e3fa28eb3a58e4baa