[orgmode] render html for the org-babel RESULTS drawers

[hilmandayo]

Hello. First of all, thank you for the awesome orgmode plugin. This plugin is the reason why I choose Nikola as my site generator.

One request. Can we add feature for the orgmode plugin so that it can render the RESULTS drawer of the org-babel and make it easier for people to think "owh, this is the output of the previous source code"? Maybe it can be rendered into a box of some sort.

As for right now, for this .org source file:

The output will be:

As you can see, the RESULTS drawer actually didn't showed up in the final HTML page when is viewed inside the browser. However, if the RESULTS drawer is not used, the results can be output. But there are several problems:

1. It is not distinguishable (is it really the output of the previous code)?
2. No newline