Add SHA2 algorithms to SSL_library_init(). Although these aren't used
directly by SSL/TLS SHA2 certificates are becoming more common and
applications that only call SSL_library_init() and not
OpenSSL_add_all_alrgorithms() will fail when verifying certificates.

Update docs.
diff --git a/CHANGES b/CHANGES
index 79ef462..a0736f4 100644
--- a/CHANGES
+++ b/CHANGES
@@ -940,6 +940,13 @@
   *) Change 'Configure' script to enable Camellia by default.
      [NTT]
   
+ Changes between 0.9.8n and 0.9.8o [xx XXX xxxx]
+
+  *) Add SHA2 algorithms to SSL_library_init(). SHA2 is becoming far more
+     common in certificates and some applications which only call
+     SSL_library_init and not OpenSSL_add_all_algorithms() will fail.
+     [Steve Henson]
+
  Changes between 0.9.8m and 0.9.8n [24 Mar 2010]
 
   *) When rejecting SSL/TLS records due to an incorrect version number, never