Environment variable QT_DIR was renamed to QTDIR.
Output directory for binaries of CSharp samples was corrected. Common run.bat was created for CSharp samples. Behaviour of run.bat file from mfc samples was extended. Recovered separate run_*.bat files for each sample in CSharp sample.
Generation of project files was fixed.
Rename all generation-vc-projects.bat (in OCCT) to genproj.bat. Fixed warnings in VoxelDemo.