Fix RLP tests.

Author: gavofyork

rlptest.json

@@ -5,11 +5,11 @@
     },
     "shortstring": {
         "in": "dog", 
-        "out": "43646f67"
+		"out": "83646f67"
     },
     "longstring": {
         "in": "Lorem ipsum dolor sit amet, consectetur adipisicing elit", 
-	"out": "TODO"
+		"out": "b8384c6f72656d20697073756d20646f6c6f722073697420616d65742c20636f6e7365637465747572206164697069736963696e6720656c6974"
     },
     "zero": {
         "in": 0, 
@@ -23,24 +23,24 @@
         "in": 1000, 
         "out": "8203e8"
     },
-    "bigint": {
-        "in": 115792089237316195423570985008687907853269984665640564039457584007913129639936, 
-        "out": "3821010000000000000000000000000000000000000000000000000000000000000000"
-    },
-    "emptylist": {
+	"emptylist": {
         "in": [], 
         "out": "c0"
     },
     "stringlist": {
         "in": [ "dog", "god", "cat" ],
-        "out": "8343646f6743676f6443636174"
+		"out": "cc83646f6783676f6483636174"
     },
     "multilist": {
         "in": [ "zw", [ 4 ], 1 ], 
-        "out": "TODO"
+		"out": "c6827a77c10401"
     },
     "listsoflists": {
         "in": [ [ [], [] ], [] ], 
-        "out": "c2c2c0c0c0"
-    }
+		"out": "c4c2c0c0c0"
+	},
+	"xbigint": {
+		"in": 115792089237316195423570985008687907853269984665640564039457584007913129639936,
+		"out": "3821010000000000000000000000000000000000000000000000000000000000000000"
+	}
 }