* Merged in lp:~aaron-whitehouse/duplicity/improve_tox_and_python2-6_testing - Testing improvements, particularly in relation to testing against Python version 2.6: * tox.ini fixed so that it is possible to run individual tests against both Python 2.6 and 2.7; * updated test_code.py to use unittest2 for Python versions < 2.7 (instead of failing); * ./run-tests now correctly runs all tests against both Python 2.6 and 2.7; and * improved testing directions in README-REPO.