[RELEASE] Released version 1.5.8

Released version 1.5.8 with the following main changes :
    - BUG/MAJOR: buffer: check the space left is enough or not when input data in a buffer is wrapped
    - BUG/BUILD: revert accidental change in the makefile from latest SSL fix
diff --git a/README b/README
index b58df1e..2dd8e83 100644
--- a/README
+++ b/README
@@ -1,9 +1,9 @@
                          ----------------------
                              HAProxy how-to
                          ----------------------
-                             version 1.5.7
+                             version 1.5.8
                              willy tarreau
-                               2014/10/30
+                               2014/10/31
 
 
 1) How to build it