Fix for run command on windows. If you specify command in quotes but not full path, it should still work

Add some minimal Dart capability to ctest. For example now you can actually use ctest to build projects, do cvs update on all platforms. This is especially cool for Visual Studio where you do not want to load the whole development environment just to build your project.

ENH: nmake now uses incremental linking as Msdev does. Faster build (linking a static vtk.exe or paraview.exe could take more than 10 minutes)

If you specify header file as source, it should still use C compiler and not CXX. Also fix COnly test so that it make sure that this still works...

Cleanup RunCOmmand code and move borland one to vtkWin32ProcessExecution, so that it is all in one place... Add timeout option whihc does not work yet, but it should not produce warning any more

ENH: Added explicit declarations of some C functions that are hard to get from standard headers in como (www.comeaucomputing.com) strict mode.

ENH: Added support to pass the gccxml program location to cable if ITK_GCCXML_EXECUTABLE is set on m_Makefile.

Fix a bug in generator. This one is good: This bug is only present on Windows 98, but since RunCommand did not work, it never showed on the dashboard... In any case commands in Visual studio 6 should be in windows style slashes

     confusions.