Bootstrap doesn't support different ways to specify package version

If I depend on a package like this:

``` js
"package": "^1.0.0 || ^2.0.0"
```

The command that gets run is:

``` sh
$ npm install package@^1.0.0 || ^2.0.0 ...
```

Which is only installing `package@^1.0.0` and everything after the `||` doesn't get installed
