Allow commenting on blog articles

[chrisbouchard]

We want to allow people to comment on blog articles (and possibly other things as well). We need to explore options:

• Using a 3rd-party service like Disqus
• Using a pre-written comment gem like lml/commontator
• Writing our own comment system (maybe based on something like jackdempsey/acts_as_commentable)

The first option would probably give the most features for the least work, but I don't think Disqus's moderation system is quite what I want. I'd like to use one moderation flow for the whole site, but to have app-level moderators as well.

The second option, at least commontator specifically, would clash with our existing site design -- at least out of the box. I don't know how much skinning/theming support it has.

The third option will be the most work, and probably involve reinventing the most wheels. However, it would let us build exactly what we want.

[chrisbouchard]

Decided to go with option 3. We started using acts_as_commentable, but found it does not play nicely with paper_trail because the author (i.e., originator) is not stored directly in the comments table.