Changes in Python Bindings:
* the exposed C++ simplex has Empty data
* Python Simplex constructor with data as well as data-based
comparison functions are implemented in pure Python
set (targets
triangle
triangle-zigzag)
set (libraries ${libraries} ${Boost_SERIALIZATION_LIBRARY})
foreach (t ${targets})
add_executable (${t} ${t}.cpp)
target_link_libraries (${t} ${libraries})
endforeach (t ${targets})