[#281] Fix for incorrect padding right on the resource list for a package

Makes it go from:

![old](https://f.cloud.github.com/assets/67366/93382/df9e0e82-661f-11e2-954b-41ec4dd37916.png)

to:

![new](https://f.cloud.github.com/assets/67366/93383/e3187368-661f-11e2-9bac-e0483fb2a289.png)

Essentially the fix is as follows:

- Make the "Explore Data" and "Raw Data" links a dropdown
- This allows us to easilt add more links to the dropdown for extensions
- Also allows for better multi-lingual support

This also means that we have better support for extensions doing this https://github.com/okfn/ckanext-pdeu/issues/47