Streaming: Add reset() to I2PSocket API

i2ptunnel: Reset I2P socket on TCP socket errors, in standard servers
that don't have protocol responses
SAM: Reset I2P socket on handler errors

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 = 4;
+    public final static long BUILD = 5;
 
     /** for example "-test" */
     public final static String EXTRA = "";