Allow pycURL to be used with Python binaries built without thread support
Test for seek function

Original patch by Jonas <seventies@users.sourceforge.net>.

http://sourceforge.net/p/pycurl/patches/8/
Allow multiple ftp tests to work in the suite
Do not run vsftpd tests by default due to security implications
Merge pull request #45 from p-push/seek-function-test

Seek function test
Merge pull request #46 from romuloceccon/threadless_python_support

Allow pycURL to be used with threadless Python