2009-08-11 sponge

* Code Janitor time! Many fixes and documenting fixes that should be
      done in the future. for the most part, this is a general code cleanup.
    * On smaller/embedded systems, the "final" keyword cleanups will have
      more of an impact than on larger systems.
    * Document missing hashCode() methods.
    * Unhide more variables to make code easier to read.

core/java/src/org/bouncycastle/crypto/digests/MD5Digest.java

@@ -104,6 +104,7 @@ public class MD5Digest
     /**
      * reset the chaining variables to the IV values.
      */
+    @Override
     public void reset()
     {
         super.reset();