Version 2.1.5[Common]Updated to OpenCV3.2.0.[Common]Added fuzzy, phase_unwrapping, saliency, shape, tracking module.[Common]Added TrackingSample.[iOS]Added ios_exclude_contrib.zip for build size reduction.[Android]Added android_exclude_contrib.zip for build size reduction.

Version 2.3.0 [iOS]Added a function to automatically remove the simulator architecture(i386,x86_64) at build time. [Common] Improved OpenCVForUnityMenuItem.setPluginImportSettings() method.

Version 2.1.8[Common]Added PCAExample.[Common]Updated WebCamTextureToMatHelper.cs and OptimizationWebCamTextureToMatHelper.cs(Changed several method names.).