* Datagrams:

- Redefine the repliable datagram signature for non-DSA_SHA1 sig types;
    was the sig of the SHA-256 of the payload, now the sig of the payload itself.
    This is an incompatible change but nobody is yet using the new
    sig types for datagram applications.
  - Don't pollute the hash cache with hashes of payloads
  - Check for too-big datagrams
  - Remove assertion check
  - Cleanups

router/java/src/net/i2p/router/RouterVersion.java

@@ -18,7 +18,7 @@ public class RouterVersion {
     /** deprecated */
     public final static String ID = "Monotone";
     public final static String VERSION = CoreVersion.VERSION;
-    public final static long BUILD = 14;
+    public final static long BUILD = 15;
 
     /** for example "-test" */
     public final static String EXTRA = "";