yui/yui3 — pull request #1704 by ezequiel (2014-03-13 23:10:48+00:00)
Title: [Loader]: `before` condition, fixes #1661

This adds a feature, `before`, that was missed in the recent `Loader` changes due to no test being written for it.

```js
YUI({
modules: {
"my-module": {
condition: {
trigger: "io",
when: "before"
}
}
}
}).use("io");
```

Granted `io` is actually used, it will ultimately produce the same effect as if you had said `io` *requires* `my-module`.