Version 1.3 Released

This release follows fast on the heels of v1.2. Some valuable changes that were in-progress at during the v1.2 release are now complete. The main upgrades have been in the Delaunay Network generation class, and the related Voronoi Geometry class and related models. These changes center around the use of image analysis to determine pore and throat sizes, and creating a voxelized representation of the solid structure for visualization. A detailed example has been created on the use of the Delaunay-Voronoi class and will be posted to http://openpnm.org. Additionally, this version now has much more extensive test coverage exceeding 80%.

Special thanks to Tom Tranter for his huge efforts on this one, and the rest of the team of course.