ImLib3D-0.8.0 release

ImLib3D is a C++ library and visualisation system for 3D image processing. It contains most basic image processing algorithms, and some more sophisticated ones. ImLib3D images are STL-compliant templated containers.

There are a lot of changes and bug fixes in this release. Several new features were added. Many things were reorganized including the directory structure. Several classes and functions were renamed.