Experiments with the ogl depth-buffer
New try at a software-renderer. Test-app
Merge remote-tracking branch 'origin/master' into swrend
Updated MatrixUtils::create*Matrix to return the same matrices as OpenGL/Qt, plus added a createOrtho

Finished outline of the new software-renderer
Moved new software renderer stuff to a separate class
Finally fixed the software-renderer bug where it would draw black spots with small triangles
Merge remote-tracking branch 'origin/master' into swrend
- Added working backface-culling and a boolean to enable it

- added view-frustum culling (not tested yet)
Merge remote-tracking branch 'origin/master' into swrend
Added MatrixUtils::createPerspectiveProjectionMatrix
Added texturing and perspective rendering to the SoftwareRenderer
MorphableModel: Flipped texcoord y-axis for isomap-loading
Merged the new and working software renderer. Will soon remove the old one.
Removed the old renderer, moved the implementation of the new one to cpp-files
Removed debug-stuff, added some notes
Removed more debug-stuff and moved application code to appropriate places
Added a CMake option WITH_RENDER_QOPENGL to compile libRender without Qt5