jsoverson/grunt-preprocess — pull request #25 by CMTegner (2013-12-07 13:55:14+00:00)
Title: Let target's context win

Given the following config:
```js
preprocess: {
options: {
context: {
ENV: 'DEV'
}
},
dev: {},
production: {
options: {
context: {
ENV: 'PROD'
}
},
}
}
```
You would expect `ENV` to be `"PROD"` when running the `production` target. This is not the case in 3.0.1.

This change flips the order of `origOptions.context` and `options.context` to let the latter win.