20170406

• Fixed relative path issue (https://github.com/unity3d-jp/AlembicImporter/issues/13 https://github.com/unity3d-jp/AlembicImporter/issues/14)
• Revived AlembicPointsRenderer
  Now it supports 'true' instancing (with Graphics.DrawMeshInstanced() or Graphics.DrawMeshInstancedIndirect(). fallback to Graphics.DrawMesh() if system doesn't support instancing or Unity is pre-5.5), and sorting (e.g. sort by distance from camera to draw transparent meshes).