Fix Bug in Commits API
Fix Bug in Commits API

bwu-dart-contributing/github.dart,kasperpeulen/github.dart,kasperpeulen/github.dart,marcojakob/github.dart,kasperpeulen/github.dart,bwu-dart-contributing/github.dart,kasperpeulen/github.dart,marcojakob/github.dart,bwu-dart-contributing/github.dart,marcojakob/github.dart,bwu-dart-contributing/github.dart,marcojakob/github.dart