No "markdown-conditional-block" class for lists

[jtrein]

Conditionals which resolve to list item(s) (e.g. ^) do not add the markdown-conditional-block classname. Therefore, they do not turn a green color in the front-end.

To reproduce use: CONFIDENTIALITY AND INVENTION ASSIGNMENT AGREEMENT

[outkaj]

I think the cause for this is probably the same as #160. Will take a look.