Clojurians Log v2

I want to thank @mstoyukhin for making many valuable contributions to martian over the last month or two. The project was largely complete and as I've sadly moved away from a Clojure role I've not been working on it. Mark came along and tackled some really thorny issues, taking great care to fit in with the philosophies and aesthetics of the codebase and produced well-documented, well-reasoned, clean code. Not only that, but he also took time to look through the open issues and notify people that their issue had been fixed by some of the contributions he'd made. A really valuable contributor, thank you Mark