[MEDIUM] make the unix stats sockets use the generic session handler

process_session() is now ready to handle unix stats sockets. This
first step works and old code has not been removed. A cleanup is
required. The stats handler is not unix socket-centric anymore and
should move to dumpstats.c.
diff --git a/src/session.c b/src/session.c
index 5197a80..56bf102 100644
--- a/src/session.c
+++ b/src/session.c
@@ -28,6 +28,7 @@
 #include <proto/pipe.h>
 #include <proto/proto_http.h>
 #include <proto/proto_tcp.h>
+#include <proto/proto_uxst.h>
 #include <proto/proxy.h>
 #include <proto/queue.h>
 #include <proto/server.h>
@@ -840,6 +841,12 @@
 						break;
 				}
 
+				if (s->req->analysers & AN_REQ_UNIX_STATS) {
+					last_ana |= AN_REQ_UNIX_STATS;
+					if (!uxst_req_analyser_stats(s, s->req, AN_REQ_UNIX_STATS))
+						break;
+				}
+
 				if (s->req->analysers & AN_REQ_PRST_RDP_COOKIE) {
 					last_ana |= AN_REQ_PRST_RDP_COOKIE;
 					if (!tcp_persist_rdp_cookie(s, s->req, AN_REQ_PRST_RDP_COOKIE))