Moved configuration.py stuff back into tagweed.py as it just proved too difficult to
make the imports work for both the tests and the actual normal running under 3.x .
This situation may be improved if I switch the tests to nose and perhaps set up some
explicit paths but it didn't see worth the trouble in the short term and this allows
the tests to run as they should under both 2.x and 3.x and allows the actual use of the
code in normal use.