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
/*
* Author: Dmitriy Morozov
* Department of Computer Science, Duke University, 2006
*
* For now file exists only to store the main page of the documentation
*/
/** \mainpage
* Detailed description of Dionysus with references to all the classes,
* and code samples goes here.
*/