Split pycurl.c into separate files for easy, multi and share objects
Fix whitespace
Add CURLOPT_TFTP_BLKSIZE
Add CURLOPT_SOCKS5_GSSAPI_SERVICE and CURLOPT_SOCKS5_GSSAPI_NEC
Add CURLPROXY_HTTP_1_0
Add CURLINFO_CONDITION_UNMET
Add CURL_SEEKFUNC_OK, CURL_SEEKFUNC_FAIL and CURL_SEEKFUNC_CANTSEEK
Document python version requirement for official binary packages on windows, fixes #183