Fix ReferenceError: setupLodash is not defined

I get:
```ReferenceError: setupLodash is not defined  
    at Object.<anonymous> (/coco/headless_client.coffee:207:6)  
    at Object.<anonymous> (/coco/headless_client.coffee:254:4)  
    at Module._compile (module.js:456:26)  
    at Object.exports.run (/usr/lib/coffee-script/lib/coffee-script/coffee-scrip
t.js:68:25)  
    at compileScript (/usr/lib/coffee-script/lib/coffee-script/command.js:135:29
)  
    at /usr/lib/coffee-script/lib/coffee-script/command.js:110:18  
    at fs.js:266:14  
    at Object.oncomplete (fs.js:107:15)```
when running coffee ./headless_client.coffee without this change. Presuming others don't have the problem.
cc @domenukk