void FreeTexture() in OpenGl_TextureBox.cxx - avoid possible NULL-pointer dereference
after debug x64 compilation the executable viewer3d had been moved to the bin folder. now executable viewer3d located in bind folder.
Removal of VoxelClient
VoxelDemo sample is redesigned so that it doesn't require compilation of OpenGl classes. It refers to TKOpenGl.dll as to an external library.
Some minor bugs are fixed in OCAF and Viewer 3d standard MFC samples