Windows compatibility (#57)

* Add Python and Redis submodules, and remove old third-party modules

* Update VS projects (WARNING: references files that do not exist yet)

* Update code & add shims for APIs except AF_UNIX/{send,recv}msg()

* Minor style changes.

src/common/logging.c

@@ -1,7 +1,9 @@
 #include "logging.h"
 
-#include <stdint.h>
 #include <inttypes.h>
+#include <stdint.h>
+#include <sys/time.h>
+
 #include <hiredis/hiredis.h>
 #include <utstring.h>