adds ability to add the fully bootstrapped plutoApp

lib/pluto.js

@@ -75,6 +75,7 @@ function pluto() {
 
   function bootstrap() {
     const result = new Map()
+    bind('plutoApp').toInstance(result)
     const promises = []
     for (let name of namesToResolvers.keys()) {
       promises.push(get(name).then((value) => {

lib/plutoSpec.js

@@ -331,3 +331,31 @@ test('injects the binder itself under the name `plutoBinder`', function* (t) {
   const actual = yield bind.get('factory')
   t.is(actual, 'test-data')
 })
+
+test('when bootstrapped, injects the bootstrapped app itself under the name `plutoApp`', function* (t) {
+  class Greeter {
+    constructor(plutoApp) {
+      // Note: the plutoApp Map may not be fully populated yet, since we could
+      // be at any indeterminate part of the bootstrapping process.
+      // Save it for later, but don't go using it yet.
+      this._plutoApp = plutoApp
+    }
+
+    greet() {
+      // By now, the app is fully bootstrapped and the plutoApp Map is safe
+      // to use.
+      const greeting = this._plutoApp.get('greeting')
+      return `${greeting}, World!`
+    }
+  }
+
+  const bind = pluto()
+  bind('greeting').toInstance('Bonjour')
+  bind('greeter').toConstructor(Greeter)
+
+  const app = yield bind.bootstrap()
+
+  const greeter = app.get('greeter')
+  const actual = greeter.greet()
+  t.is(actual, 'Bonjour, World!')
+})