added AMD build to browser/ with `rake dist`

Rakefile

@@ -50,6 +50,13 @@ file "browser/rsvp.js" => ["browser", "lib/rsvp.js"] do
   end
 end
 
+file "browser/rsvp-amd.js" => ["browser", "lib/rsvp.js"] do
+  library = File.read("lib/rsvp.js")
+  open "browser/rsvp-amd.js", "w" do |file|
+    file.puts "define(function(require, exports, module) { #{library} });"
+  end
+end
+
 file "browser/rsvp.min.js" => "browser/rsvp.js" do
   output = `cat browser/rsvp.js | uglifyjs`
 
@@ -58,10 +65,10 @@ file "browser/rsvp.min.js" => "browser/rsvp.js" do
   end
 end
 
-task :dist => ["browser/rsvp.js", "browser/rsvp.min.js"]
+task :dist => ["browser/rsvp.js", "browser/rsvp.min.js", "browser/rsvp-amd.js"]
 
 task :push => :dist do
-  sh "git add browser/rsvp.js browser/rsvp.min.js"
+  sh "git add browser/rsvp.js browser/rsvp.min.js browser/rsvp-amd.js"
   sh "git commit -m 'Updates build artifacts'"  
 end
 

browser/rsvp-amd.js

+define(function(require, exports, module) { "use strict";
+
+var browserGlobal = (typeof window !== 'undefined') ? window : {};
+
+var MutationObserver = browserGlobal.MutationObserver || browserGlobal.WebKitMutationObserver;
+var async;
+
+if (typeof process !== 'undefined') {
+  async = function(callback, binding) {
+    process.nextTick(function() {
+      callback.call(binding);
+    });
+  };
+} else if (MutationObserver) {
+  var queue = [];
+
+  var observer = new MutationObserver(function() {
+    var toProcess = queue.slice();
+    queue = [];
+
+    toProcess.forEach(function(tuple) {
+      var callback = tuple[0], binding = tuple[1];
+      callback.call(binding);
+    });
+  });
+
+  var element = document.createElement('div');
+  observer.observe(element, { attributes: true });
+
+  async = function(callback, binding) {
+    queue.push([callback, binding]);
+    element.setAttribute('drainQueue', 'drainQueue');
+  };
+} else {
+  async = function(callback, binding) {
+    setTimeout(function() {
+      callback.call(binding);
+    }, 1);
+  };
+}
+
+exports.async = async;
+
+var Event = exports.Event = function(type, options) {
+  this.type = type;
+
+  for (var option in options) {
+    if (!options.hasOwnProperty(option)) { continue; }
+
+    this[option] = options[option];
+  }
+};
+
+var indexOf = function(callbacks, callback) {
+  for (var i=0, l=callbacks.length; i<l; i++) {
+    if (callbacks[i][0] === callback) { return i; }
+  }
+
+  return -1;
+};
+
+var callbacksFor = function(object) {
+  var callbacks = object._promiseCallbacks;
+
+  if (!callbacks) {
+    callbacks = object._promiseCallbacks = {};
+  }
+
+  return callbacks;
+};
+
+var EventTarget = exports.EventTarget = {
+  mixin: function(object) {
+    object.on = this.on;
+    object.off = this.off;
+    object.trigger = this.trigger;
+    return object;
+  },
+
+  on: function(eventName, callback, binding) {
+    var allCallbacks = callbacksFor(this), callbacks;
+    binding = binding || this;
+
+    callbacks = allCallbacks[eventName];
+
+    if (!callbacks) {
+      callbacks = allCallbacks[eventName] = [];
+    }
+
+    if (indexOf(callbacks, callback) === -1) {
+      callbacks.push([callback, binding]);
+    }
+  },
+
+  off: function(eventName, callback) {
+    var allCallbacks = callbacksFor(this), callbacks;
+
+    if (!callback) {
+      allCallbacks[eventName] = [];
+      return;
+    }
+
+    callbacks = allCallbacks[eventName];
+
+    var index = indexOf(callbacks, callback);
+
+    if (index !== -1) { callbacks.splice(index, 1); }
+  },
+
+  trigger: function(eventName, options) {
+    var allCallbacks = callbacksFor(this),
+        callbacks, callbackTuple, callback, binding, event;
+
+    if (callbacks = allCallbacks[eventName]) {
+      for (var i=0, l=callbacks.length; i<l; i++) {
+        callbackTuple = callbacks[i];
+        callback = callbackTuple[0];
+        binding = callbackTuple[1];
+
+        if (typeof options !== 'object') {
+          options = { detail: options };
+        }
+
+        event = new Event(eventName, options);
+        callback.call(binding, event);
+      }
+    }
+  }
+};
+
+var Promise = exports.Promise = function() {
+  this.on('promise:resolved', function(event) {
+    this.trigger('success', { detail: event.detail });
+  }, this);
+
+  this.on('promise:failed', function(event) {
+    this.trigger('error', { detail: event.detail });
+  }, this);
+};
+
+var noop = function() {};
+
+var invokeCallback = function(type, promise, callback, event) {
+  var value, error;
+
+  if (callback) {
+    try {
+      value = callback(event.detail);
+    } catch(e) {
+      error = e;
+    }
+  } else {
+    value = event.detail;
+  }
+
+  if (value instanceof Promise) {
+    value.then(function(value) {
+      promise.resolve(value);
+    }, function(error) {
+      promise.reject(error);
+    });
+  } else if (callback && value) {
+    promise.resolve(value);
+  } else if (error) {
+    promise.reject(error);
+  } else {
+    promise[type](value);
+  }
+};
+
+Promise.prototype = {
+  then: function(done, fail) {
+    var thenPromise = new Promise();
+
+    this.on('promise:resolved', function(event) {
+      invokeCallback('resolve', thenPromise, done, event);
+    });
+
+    this.on('promise:failed', function(event) {
+      invokeCallback('reject', thenPromise, fail, event);
+    });
+
+    return thenPromise;
+  },
+
+  resolve: function(value) {
+    exports.async(function() {
+      this.trigger('promise:resolved', { detail: value });
+      this.isResolved = value;
+    }, this);
+
+    this.resolve = noop;
+    this.reject = noop;
+  },
+
+  reject: function(value) {
+    exports.async(function() {
+      this.trigger('promise:failed', { detail: value });
+      this.isRejected = value;
+    }, this);
+
+    this.resolve = noop;
+    this.reject = noop;
+  }
+};
+
+EventTarget.mixin(Promise.prototype);
+ });