yeoman/grunt-usemin — pull request #64 by sleeper (2013-02-18 16:57:07+00:00)
Title: Implement block-alternate origin path

This is fixing #63 by adding a way to alternate, at block-level, the origin path, when preparing concat and uglify config.

Usually, when something like that is specified in, let's say `app.index.html`:

```

```
`foo.js` and `bar.js` are searched relatively to the file (i.e. uglify and concant config are trying to get file from `app/scripts`).

By specifying an alternate directory (for example `.tmp`), we can change that:

```

```
foo.js` and `bar.js` are searched relatively to the `.tmp` directory (i.e. `.tmp/scripts/foo.js`).