Awesome to hear you use GitLab CI for both internal and client project code. Thanks for using the wiki. I would love to see the move to Kramdown too https://gitlab.com/gitlab-org/gitlab-ce/issues/18552

I think we use the Gollum gem for rendering but that many of the features need to be enabled individually https://gitlab.com/gitlab-org/gitlab-ce/issues/2073

I'm very excited about the first iteration of time tracking that will hopefully land next month https://gitlab.com/gitlab-org/gitlab-ee/issues/985

We're looking into hosting Mattermost ourselves, but it will be a couple of months before we have the access controls right I think.

Thanks for all your kind words.