Add __next__() method
Python 3: Added class _fileobject()
Python 3: Fix StringIO usage
Use popen2 from moule, not from standart library

FIXME: replace popen2 to subprocess
PY3: Fixed eventlet/green/subprocess.py syntax
Remove itertools.izip() usage
PY3: Fix execfile() usage
Import fixes
Fix http import
Fixed tests in api_test.py
Fixed tests in tests/patcher_test.py (WIP)
Fix tests in tests/mysqldb_test.py (WIP)
Fix tests in tests/debug_test.py (WIP)
Fixed tests in tests/convenience_test.py (WIP)
Fixes due to py3 compability
Fixes due to tests from zmq_test.py passed on py3
Tests from mysqldb_test.py passed in py3
Fix ssl_tests for py3
Fixed fork test for py3 env
Attempt to run tests/greenio_test.py file (FAIL)