fix windows build (#29)

* fix windows build

* fix for Unix

* Fix build if TLS is OFF

* add OpenSSL req to ws

* Fix build on Mac

* fix tests for windows

test/test_runner.cpp

@@ -7,8 +7,6 @@
 #define CATCH_CONFIG_RUNNER
 #include "catch.hpp"
 
-#include <ixwebsocket/IXSocket.h>
-
 int main(int argc, char* argv[])
 {
     int result = Catch::Session().run(argc, argv);