Processing a different case of package info

I found a different case of package info which is installed from git like below. 

```js
{
  _id: 'a-package@0.1.0',
  _shasum: 'ed034622de6e086ed126e01eb03390823f1e7dc5',
  _from: '../../../../../../tmp/npm-84169-30cf5a30/1419842545049-0.7846870112698525/d0926e934fd9bd5d9a747112a85b7eae5e936157',
  _resolved: 'git+ssh://git@github.com:jin/a-package.git#d0926e934fd9bd5d9a747112a85b7eae5e936157' 
}
```

But **force-dedupe-git-module** refers only the **_from** information. So I added some code for processing with **_resolved** info.