Fixed issue #132: gethostbyname(unicode) now does ascii encoding and uses gevent's resolver rather than calling built-in resolver

better error reporting in case of digest mismatch

--HG--
extra : transplant_source : %89h%CD%7CY%C9u%06%93%83%0A%A8%9FZ%E7f%E0L%05%82

--HG--
extra : transplant_source : jqs7%F6H%ADg/U%81%D4%A7%19%E1%BB%F7%D9%80%AE

--HG--
extra : transplant_source : 3m%8B%8F%82%C6%8A%8B%DFy%C0z%F5%2A%8D%B8%A9%BE%23y

This fixes a lot of stacktraces of socket.error on Windows where EAGAIN != EWOULDBLOCK

Only reinit event base in the child process; this fixes issue #61 when on libevent2. Patch from issue #61 by ABoudkar.