Removing py24compat module
Use modern syntax for exception handling in ez_setup.py. This change will also prevent Python 2.4 and Python 2.5 users from invoking it.
Simplify _build_install_args now that Python 2.6 is required.
Regenerate egg_info based on new setup.py
The one use of xrange could also use range, so just use range.
Drop compatibility function exec_, required for Python 2.5 and earlier.