component/builder.js — pull request #169 by eivindfjeldstad (2014-02-21 21:25:56+00:00)
Title: add build.filter

This allows people to do
```js
build.filter(function (build, conf){
...
if (ext == '.jade') return false;
file.contents = jade(file.contents);
conf.scripts.push(file);
});
```

see #157