Added basic benchmark infrastructure

And also found out that 0.7.0 regresses against 0.6.0 :p

Much work to be done :D

benchmarks/object.js

@@ -0,0 +1,64 @@
+var Benchmark = new require('benchmark')
+
+var genProp = function(){
+    var o = {}
+    o[Math.random()] = Math.random()
+    return o
+}
+
+var test = function(p, version){
+    var suite = new Benchmark.Suite
+
+    var obj = p.dict({ x: 3 })
+
+    return suite
+
+        .add('set one', function(){
+            p.dict(genProp())
+        })
+
+        .add('set 25', function(){
+            var o = p.dict()
+            for ( var i = 0; i < 25; i +=1 ) {
+                o = o.set(genProp())
+            }
+        })
+
+        .add('set 50', function(){
+            var o = p.dict()
+            for ( var i = 0; i < 50; i +=1 ) {
+                o = o.set(genProp())
+            }
+        })
+
+        .add('set 100', function(){
+            var o = p.dict()
+            for ( var i = 0; i < 100; i +=1 ) {
+                o = o.set(genProp())
+            }
+        })
+
+        .add('set 1000', function(){
+            var o = p.dict()
+            for ( var i = 0; i < 1000; i +=1 ) {
+                o = o.set(genProp())
+            }
+        })
+
+        .add('get one', function(){
+            obj.get('x')
+        })
+
+        .on('complete', function(){
+            var data = this.map(function(o){ return { name: o.name, count: o.count } })
+            console.log('VERSION', version, data)
+        })
+
+        .run({
+            async: true
+        })
+
+}
+
+test(require('../versions/0.7.0'), '0.7.0')
+test(require('../versions/0.6.0'), '0.6.0')