worker injection

[runspired]

Remaining Alpha Tasks

• [x] ember install skyrocket-engine
• [x] ember g worker foo
• [x] foo: inject.worker('foo')
• [x] bar: inject.worker('foo:bar')
• [x] compile workers/foo/worker.js to assets/workers/foo.js
• [ ] compile workers/foo/contract.js to workers/foo.js
• [x] WorkerShell
• [ ] WorkerService
• [25%] WorkerTransport
• [ ] Put loader.js into Workers.
• [ ] Skyrocket Object Model
• [x] WorkerBoot