Newlines converted to BR tags

[barraponto]

Gist.io is currently converting newlines in markdown to BR tags, but that's not the behavior that Github uses in http://gist.github.com

Examples: https://gist.github.com/barraponto/7450314/ and http://gist.io/7450314

[barraponto]

This issue stems from the commit 0252440 which starts rendering stuff as GithubFormattedMarkdown. As the documentation says:

In GFM mode, hard line breaks are always taken into account, and issue and user mentions are linked accordingly.

However, I don't see a reason to use such mode as the default. Neither does the Github API, which defaults to regular markdown. Of course, having a context to reference issues, users and commits would be great, provided there was some metadata to inform the Markdown API. Otherwise, it'd be best to stick to regular Markdown.

[barraponto]

Oh and I have to reinforce that regular line breaks in markdown were always ignored, which is great for the 80-chracter-line geeks (like myself). It might make sense for Github textfields, but not for text-editor/code-editor environments.

[Potherca]

@idan ✔️ Issue can be closed.

Looking at https://gist.io/@barraponto/7450314/ everything looks like it is rendered as expected (i.e. newlines are ignored as in the Gist).