fix _socket3 send/sendall
Fix __slots__ in ssl3
Event: add dummy _reset_internal_locks
util.py: remove unused variable SLEEP
util.py: ignore decoding errors
threadpool.py: rename internal var

'result' into 'thread_result'
simpler implementation of backdoor.py
Merge pull request #431 from surfly/minor

simpler impl of backdoor.py and few minor changes
add test__real_greenlet.py
test__real_greenlet.py: fix pep8 on python3
list of known failures as a python script

replaced known_failures.txt with known_failures.py
Merge pull request #432 from surfly/known_failures.py

list of known failures as a python script
list of known failures as a python script

replaced known_failures.txt with known_failures.py
test__socket_dns.py: do not compare IPv6 addresses
Merge pull request #433 from surfly/minor

implement list of known failures as a python script
Merge pull request #429 from fantix/ssl3_slots

Fix __slots__ in ssl3
Merge pull request #420 from fantix/socket_send

fix _socket3 send/sendall
add greentest/2.7pypy/
rename _semaphore.pyx -> _semaphore.py

on PyPy we do not build it; on CPython .so takes priority over .py.
bigger delays in tests for travis/pypy