added atob

atob/index.js

@@ -0,0 +1,9 @@
+(function () {
+  "use strict";
+
+  function atob(str) {
+    return new Buffer(str, 'utf8').toString('base64');
+  }
+
+  module.exports = atob;
+}());

atob/package.json

@@ -0,0 +1,18 @@
+{
+  "name"          : "atob",
+  "homepage"      : "https://github.com/coolaj86/node-browser-compat",
+  "description"   : "atob for Node.JS (it's a one-liner)",
+   "repository"   : {
+                      "type": "git",
+                      "url": "git://github.com/coolaj86/node-browser-compat.git"
+                    },
+  "keywords"      : ["atob", "browser"],
+  "author"        : "AJ ONeal <coolaj86@gmail.com> (http://coolaj86.info)",
+  "engines"       : {
+                      "node": ">= 0.4.0"
+                    },
+  "dependencies"  : {
+                    },
+  "main"          : "index",
+  "version"       : "1.0.0"
+}

atob/test.js

@@ -0,0 +1,14 @@
+(function () {
+  "use strict";
+
+  var atob = require('./index')
+    , expected = "SGVsbG8gV29ybGQ="
+    , result
+    ;
+
+  if (expected !== atob("Hello World")) {
+    return;
+  }
+
+  console.log('[PASS] all tests pass');
+}());