Make builder.js perf warnings debug-only and info level instead of warn
Make builder.js perf warnings debug-only and info level instead of warn

These warnings can easily drown out everything else in the console, and they aren't relevant to most development

yurydelendik/shumway,tschneidereit/shumway,tschneidereit/shumway,yurydelendik/shumway,mozilla/shumway,tschneidereit/shumway,tschneidereit/shumway,mozilla/shumway,mbebenita/shumway,tschneidereit/shumway,mbebenita/shumway,mozilla/shumway,yurydelendik/shumway,yurydelendik/shumway,mbebenita/shumway,yurydelendik/shumway,mbebenita/shumway,mozilla/shumway,mozilla/shumway,mbebenita/shumway,mbebenita/shumway,mozilla/shumway,mbebenita/shumway,yurydelendik/shumway,tschneidereit/shumway,mozilla/shumway,yurydelendik/shumway,tschneidereit/shumway,tschneidereit/shumway,mozilla/shumway,yurydelendik/shumway,mbebenita/shumway