dart-lang/dart-box2d — pull request #30 by johnmccutchan (2014-01-24 16:01:12+00:00)
Title: Upgrade to latest vector_math release

Require vector_math 1.4.2
Fix benchmark_runner to be compatible with Dart 1.0
Switch from vector_math to vector_math_64 (gives ~5% speedup).