louloulibs is directly included, instead of being a submodule

Because this is a nightmare to manage

louloulibs/xmpp/body.hpp

@@ -0,0 +1,12 @@
+#ifndef XMPP_BODY_HPP_INCLUDED
+#define XMPP_BODY_HPP_INCLUDED
+
+namespace Xmpp
+{
+// Contains:
+// - an XMPP-valid UTF-8 body
+// - an XML node representing the XHTML-IM body, or null
+  typedef std::tuple<const std::string, std::unique_ptr<XmlNode>> body;
+}
+
+#endif /* XMPP_BODY_HPP_INCLUDED */