Added standard bundle installation instructions

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | yes
| Applies to    | -
| Fixed tickets | #4157

Note: if you think that this draft is awful, please say it so and we'll rewrite it from scratch.
To make myself more clear, this is what I would like to have:

![doc_bundles](https://cloud.githubusercontent.com/assets/73419/4013960/e3845cce-2a1b-11e4-903f-685c394625d1.png)