Move unix to precede windows
Add ExtensionConfiguration class to hold the global variables in setup.py for future unit testing
Test coverage for pulling ssl library out of --libs and --static-libs of curl-config
Add tests for HAVE_CURL_SSL define
Achieve the same effect with a single variable
On travis we set PYCURL_SSL_LIBRARY, clear it in the setup test
Test that --static-libs libraries are ignored if --libs succeeds
Merge pull request #149 from p-push/setup-testing

Testing of code in setup.py