Fixed test__refcount.py
Fixed test__socket.py
Fixed test__examples
Fixed test__ssl.py
Fixed test__greenio.py
Fix tests for PY3.
Fixed test__pool.py for PY3
Fixed test__os.py for PY3
Fixed test__all.py
Fix resource warning caused by FeedParser in pywsgi.py
Fix resource warning for test__server.py
Fix resource warning in test__example_udp_server.py
Fix resource warning in test__example_echoserver.py
socket._sock in xtest__server_close.py
Fix resource warning in test__socket.py
Fix resource warning in test__socket_ex.py
Fix increased refcount in test__server.py
Fix increased refcount in greenlet.py
Fix increased refcount in timeout.py
Fix increased refcount in socket.py