Use underscores sortIndex for bin search when finding end points.
Use underscores sortIndex for bin search when finding end points.

RobertoMalatesta/envisionjs,RobertoMalatesta/envisionjs,bigspotteddog/envisionjs,bigspotteddog/envisionjs,HumbleSoftware/envisionjs,notepad104/envisionjs,RobertoMalatesta/envisionjs,notepad104/envisionjs,notepad104/envisionjs,HumbleSoftware/envisionjs