rjbs/Dist-Zilla — pull request #369 by karenetheridge (2014-11-02 03:35:33+00:00)
Title: build the prereqs attr lazily

This gives a minor efficiency boost when we're not doing a full build, but also lets things like [VerifyPrereqs] be able to tell when something tries to look in $zilla->prereqs prematurely and warn about it.