assets: resolution of jquery to ~1.11

**Problem**

```
BundleError: 'vendors/jquery/dist/jquery.js' not found in load path: ...
```

**Changes**

* Changes the jquery resolution to ~1.11 instead of <2 since it would pick jquery 1.7.2 as required by jquery.treeview.

**Note**

* Update your `bower.json` accordingly.