better output: show test args when using generators

cf. http://readthedocs.org/docs/nose/en/latest/writing_tests.html#test-generators
fix tests: AttributeError was raised when  was a Failure or Skip object
Show parameter values for generated tests. Closes #40.
Fixed small issues, to make it work with Python3 without 2to3 tool.
Make a few tweaks to Python 3 support.
Merge experimental Python 3 support.

Tests don't run in Python 3, but functionality might work.
Fix for Exception switcharoo

Nose converts things that aren't exceptions into exceptions so this
better handles that case.
Bring version history up to date.
Fix several Unicode errors in traceback formatting.

* Syntax errors on lines that contain non-ASCII chars
* Pathnames containing non-ASCII chars
* Function names containing non-ASCII chars

This does nothing for #41, #29, #33, or #44, which I think are all a single upstream bug.
Bump version to 1.4.
Make `python setup.py test` work.
Fix the AttributeError that sometimes would occur at breakpoints. Fix #57, #54.
Bump version number to 1.4.1.
Clear the loader's path cache after counting tests, so it actually finds tests during the running phase. Fix #51. Bump version to 1.4.2.
Make progress bar tests less brittle so they don't falsely fail on OS X 10.8 or other platforms where the terminfo isn't exactly what I wrote the test under. Fix #53.
Add honest-to-goodness, tox-tested support for Python 3.3.

All I really did was fix a test import. I visually confirmed it works running tests on itself, but nothing shows up when testing pyelasticsearch. Hmm.

We might get to 3.2 later, but we'd have to do something about our u'...' literals. Blessings can't support 3.1.
Pitch a little better in the readme.

Don't make people do the work to learn what nose is and that they can apply it to their project without changing their code.
Fix bar not showing up for some suites under Python 3. Bump version to 1.4.3.
Tweak package short description to be less implementation oriented.
Provide for arbitrary customization of the editor shortcut. Drop Python 2.5 support. Bump version to 1.5. Fix #39. Fix #47.