parseComment() utility for Dabblet.title()

(This needs to be merged on top of the test-setup pull).

I basically changed code/dabblet.js Dabblet.title() to use a utility that parses both the title and the comment body. I was planning to use it to create an .md in the gist for easier viewing through github (without any dabblet extension) and maybe a link to the dabblet site so the top comment could serve as a little readme for it.

It's only unit-tested because I couldn't run the site to test integration so it needs to be tested on your setup.