The visual links between functions are recovered.
The demo is synchronized with a corresponding demo from Qt (qt486-vc10-32\examples\graphicsview\elasticnodes). It may be successfully compiled by any further versions of Qt including 5.10.1
Also, because Open CASCADE (and OCAF in particular) is improved for usage in multi-threading mode, usage of mutexes is added in this sample (for access to the sharing TNaming_UsedShapes attribute, for example).
Added compile-time checks (static_assert) in DEFINE_STANDARD_RTTI*(A,B) macros to check that A is actually the class being defined, and B is its base class.
For GCC compiler version 4.7 and later on, check ensures that B is direct base class of A.
Fixed dubious RTTI definitions.
PRO file is added + a description of how to generate the Visual Studio projects and compile.
In addition, the sample folder is renamed to FuncDemo.
Adding 64 bit configuration to VC projects
