Changes to CMakeLists:
* Optimize and debug options derive flags from CMKAE_CXX_FLAGS*
* Moved CGAL CXX flags from the top level to the specific locations where they are required
#ifndef __NUMBER_TRAITS_H__
#define __NUMBER_TRAITS_H__
template<class NumberType_>
class number_traits
{
public:
typedef NumberType_ NumberType;
static NumberType& normalize(NumberType& n) { return n; }
};
#endif