Merge the engine branch into the main trunk.  All conflicts resolved.
At the same time, add VMS support for Rijndael.

config

diff --git a/config b/config
index a354456..2f84a45 100755
--- a/config
+++ b/config
@@ -482,11 +482,17 @@
   *) OUT=`echo $GUESSOS | awk -F- '{print $3}'`;;
 esac
 
+# NB: This atalla support has been superceded by the ENGINE support
+# That contains its own header and definitions anyway. Support can
+# be enabled or disabled on any supported platform without external
+# headers, eg. by adding the "hw-atalla" switch to ./config or
+# perl Configure
+#
 # See whether we can compile Atalla support
-if [ -f /usr/include/atasi.h ]
-then
-  options="$options -DATALLA"
-fi
+#if [ -f /usr/include/atasi.h ]
+#then
+#  options="$options -DATALLA"
+#fi
 
 # gcc < 2.8 does not support -mcpu=ultrasparc
 if [ "$OUT" = solaris-sparcv9-gcc -a $GCCVER -lt 28 ]