- and don't silent KeyboardInterrupt in serve_forever()

- remove obscure table from the bottom

- since _socket is not monkey patched, not need to save stuff from

- it's OK because _socket.gethostbyname() won't access network
- this fixes test_socket.py/testHostnameRes

- only call dns_init when HAS_EVDNS

--HG--
rename : greentest/test__asyncresult.py => greentest/test__event.py

- when timeout expires it must return to the caller, not raise Timeout

--HG--
extra : transplant_source : j%91%1B%9E%3A%7D%98x%F9%7Bnp%83%F3%85%19%F6%C3A4

--HG--
extra : transplant_source : %AFobD%7B%9B%B7%E8%10M%E2%22%91B3%9B%C3%13_%F9