Done markers about github-pull-review

[kegsay]

Structure:

class Action {
  Comments[] comments; // line comments or overview comments linked via comment ID URLs somewhere in the body
  boolean isDone; // true if last comment is "Done."
  string owner; // person who made the original comment
}

Processing the block of comments in a PR to actions:

• Create new Action for each set of line comments on the same line.
• Create new Action for each set of overview comments which start "Needs action:" and are linked via comment ID urls somewhere in the body.

[kegsay]

Good progress has been made on this but it's still not done (hurrhurr). Need tick box for "Done?" and "Actionable?" on overview comments.