Daemonize changes pulled in -- daemon builds

many RPC functions added by the daemonize changes
(and related changes on the upstream dev branch that were not merged)
were commented out (apart from return).  Other than that, this *should*
work...at any rate, it builds, and that's something.

src/daemonizer/posix_fork.h

@@ -0,0 +1,11 @@
+#pragma once
+
+#ifndef WIN32
+
+namespace posix {
+
+void fork();
+
+}
+
+#endif