What were the reason for chosing Mercurial as a basis of FogCreek Kiln, a source control management system with tightly integrated code review, and FogBugz integration?
Why Mercurial, and not other (distributed) version control system, like Bazaar, Git or Monotone, or creating own version control system like Fossil (distributed software configuration management, including bug tracking and wiki) did?
What were features that make FogCreek choose Mercurial as Kiln engine?