[RELEASE] Released version 1.5.3

Released version 1.5.3 with the following main changes :
    - DOC: fix typo in Unix Socket commands
    - BUG/MEDIUM: connection: fix memory corruption when building a proxy v2 header
    - BUG/MEDIUM: ssl: Fix a memory leak in DHE key exchange
    - DOC: mention that Squid correctly responds 400 to PPv2 header
    - BUG/MINOR: http: base32+src should use the big endian version of base32
    - BUG/MEDIUM: connection: fix proxy v2 header again!
diff --git a/README b/README
index 98c6645..66be507 100644
--- a/README
+++ b/README
@@ -1,9 +1,9 @@
                          ----------------------
                              HAProxy how-to
                          ----------------------
-                             version 1.5.2
+                             version 1.5.3
                              willy tarreau
-                               2014/07/12
+                               2014/07/25
 
 
 1) How to build it