Replace obvious unicode() with text_type.
Ignore sys.exc_clear() for PY3.
Added __bool__ for PY3 next to __nonzero__.
Handle reraise in PY3

Conflicts:
	gevent/pywsgi.py
Fix pyflakes for PY3.

Conflicts:
	gevent/hub.py
	greentest/six.py

amend
Fix indexing exceptions (ex[0]) by using args (ex.args[0]), refs #38
Fixes #369, except scope issue in PY3.
Refs #38, fix pywsgi headers issue in PY3
Refs #38, fixes urllib/urllib2/urlparse renamings in PY3
full Python 3.3 API for socket/ssl module
Minor fix str/byte issue of subprocess.
byte/str issue in test output.
Fixed test__core_stat.py
Fixed subprocess tests.
Enable tests for Python 3.3.
Make pyflakes test pass for PY3.
gevent/local.py
 * doctest
Fix str/bytes issue.
 * udp_client.py
 * gevent/subprocess.py
Fix range issue.
 * test__order.py
makefile signature bufsize -> buffering