Make results an EventEmitter

package.json

@@ -1,7 +1,11 @@
-{ "name" : "tap-results"
-, "version" : "0.0.1"
-, "description" : "A util for keeping track of tap result objects"
-, "main" : "./results.js"
-, "author" : "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)"
-, "repository" : "https://github.com/isaacs/tap-results"
+{
+  "name": "tap-results",
+  "version": "0.0.1",
+  "description": "A util for keeping track of tap result objects",
+  "main": "./results.js",
+  "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me/)",
+  "repository": "https://github.com/isaacs/tap-results",
+  "dependencies": {
+    "inherits": "~1.0.0"
+  }
 }

results.js

@@ -2,6 +2,11 @@
 
 module.exports = Results
 
+var inherits = require("inherits")
+  , EventEmitter = require("events").EventEmitter
+
+inherits(Results, EventEmitter)
+
 function Results (r) {
   //console.error("result constructor", r)
   this.ok = true
@@ -30,6 +35,7 @@ Results.prototype.addSet = function (r) {
   this.ok = this.ok && r.ok && true
   this.bailedOut = this.bailedOut || r.bailedOut || false
   this.list = (this.list || []).concat(r.list || [])
+  this.emit("set", this.list)
   //console.error("after addSet", this)
 }
 
@@ -58,4 +64,5 @@ Results.prototype.add = function (r, addToList) {
   if (addToList === false) return
   this.list = this.list || []
   this.list.push(r)
+  this.emit("result", r)
 }