Applied the changes which somehow vanished during my last merge. Thanks goes
to Marci for noticing this. In detail:
- added amsmath and amssymb latex packages for latex documentation
- src/demo is also scanned for doxygen input files

CXXFLAGS = -Wall -ansi -I.

CXX = g++-3.0

marci_graph_demo: marci_graph_demo.cc marci_list_graph.hh marci_property_vector.hh marci_bfs.hh marci_max_flow.hh

	$(CXX) $(CXXFLAGS) marci_graph_demo.cc -o marci_graph_demo