service does not start

Running add gives me this:

```
npm info lifecycle app@0.0.1~prestart: app@0.0.1
npm info lifecycle app@0.0.1~start: app@0.0.1
module.js:472
throw err;
^

Error: Cannot find module 'funker'
at Function.Module._resolveFilename (module.js:470:15)
at Function.Module._load (module.js:418:25)
at Module.require (module.js:498:17)
at require (internal/module.js:20:19)
at Object. (/usr/src/app/handler.js:2:14)
at Module._compile (module.js:571:32)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:488:32)
at tryModuleLoad (module.js:447:12)
at Function.Module._load (module.js:439:3)
```

reproduction code here:

https://github.com/ianmiell/shutit-funker/blob/master/shutit_funker.py#L10

Start by reproducing the npm start failure described in the issue and inspect handler.js at line 2, where the missing module is reported. Compare the startup path with the linked reproduction; done means the service starts without the Cannot find module 'funker' error.

Written by the indexing model from the issue text.