Create wrapper script around mojom's generate.dart in the Sky package.

sky/sdk/README.md

 Sky
 ===
 
 Sky is an experimental, high-performance UI framework for mobile apps. Sky helps
 you create apps with beautiful user interfaces and high-quality interactive
 design that run smoothly at 120 Hz.
 
 Sky consists of two components:
 
 1. *The Sky engine.* The engine is the core of the system. Written in C++, the
@@ skipping 18 matching lines @@
 Sky uses Dart and Sky applications are
 [Dart Packages](https://www.dartlang.org/docs/tutorials/shared-pkgs/).
 Application creation starts by creating a new directory and
 adding a [pubspec.yaml](https://www.dartlang.org/tools/pub/pubspec.html):
 
  pubspec.yaml for your app:
 ```yaml
 name: your_app_name
 dependencies:
  sky: any
+ mojom: '>=0.0.3 <1.0.0'

[eseidel, 2015/05/07 17:55:33]

Other than this line, the change looks fine.

[blundell, 2015/05/07 18:38:47]

What you suggested was my first thought as well. Unhappily, it turns out that
dart only lets you do "pub run" on executables that are in direct dependencies.

[sethladd, 2015/05/11 16:38:02]

If you want to run a Dart script from a package that is not a direct dependency,
there is one option:

1) globally install that package.

pub global activate foo

(if you then put ~/.pub-cache/bin into your PATH, you can then run those
scripts)


Meanwhile, I've opened https://code.google.com/p/dart/issues/detail?id=23426

 ```
 
 Once the pubspec is in place, create a `lib` directory (where your dart code
-will go) and run `pub get` to download all necessary dependencies and create
-the symlinks necessary for 'package:your_app_names/main.dart' includes to work.
+will go) and run the following:
+
+`pub get && pub run mojom:generate`.
 
 Currently the Sky Engine assumes the entry point for your application is a
 `main` function located inside a `main.sky` file at the root of the package.
 `.sky` is an html-like format:
 ```
 <sky>
 <script>
 import 'package:your_app_name/main.dart';
 
 void main() {
@@ skipping 143 matching lines @@
 [Keyboard](https://github.com/domokit/mojo/blob/master/mojo/services/keyboard/public/interfaces/keyboard.mojom)
 service to allow Sky Framework Dart code to interface with the underlying
 platform's Keyboard, but also to expose any additional non-Dart business logic
 to Sky/Dart UI code.
 
 As and example, [SkyApplication](https://github.com/domokit/mojo/blob/master/sky/shell/org/domokit/sky/shell/SkyApplication.java)
 exposes a mojo `network_service` (required by Sky Engine C++ code)
 [SkyDemoApplication](https://github.com/domokit/mojo/blob/master/sky/apk/demo/org/domokit/sky/demo/SkyDemoApplication.java)
 additionally exposes `keyboard_service` and `sensor_service` for use by the Sky
 Framework from Dart.