Doomsday Engine

Homepage|Build Repository: Implemented new designed for build repository index

The single linear list representation for build events used by the older
interface was no longer suitable now that multiple development branches
are being targeted by the autobuilder.

This new interface organises build events within a "build graph" according
to the Doomsday version number in effect on the branch targeted during
the build.

The build graph is aranged such that the horizontal axis denotes Doomsday
version number (ascent rightwards) and the vertical axis denoting time
(descent downward).

Todo: Clean up the implementation