Split AbstractModelLoader into AbstractLoader and AbstractModelLoader to provide a common interface for all loaders, including the image loaders for #143
Add abstract structure for image loading for #143
Add implementation for Images based on QImage with texture support for #143
Fix public inheritance of Image.
Add loader for ImageQt for #143
Move DataBlockRegistry to AbstractModelLoader, because image loaders do not need the registry. #143
Reorganize file loading to support other formats than just models. #143
Show all loadable types of all loaders as QFileDialog filter.
Check if loaded images are valid before trying to use them in image viewer #143.
Disable SceneHierarchyTree for image viewer #143
Hide all scene information when loading an image, show again when loading a model #143
Use only supported image formats in imageqtloader for #143
Move QImage initialization to initializer list. Ref #143
Remove explicit call to constructor of QStringList in imageqtloader. ref #143
Include additional image formats supported by QImage #143
Merge branch 'materials/image_viewer' of https://github.com/hpicgs/cgsee into materials/image_viewer
Add glraw image format importer for image viewer. ref #143
Merge branch 'materials/image_viewer' of github.com:hpicgs/cgsee into materials/image_viewer
Remove space in file type description, ref #143
Add experimental image viewer that can display Qt and glraw images but breaks some 3D viewer functions. #143