The MapFactories have been removed from the code because
if we use macros then they increases only the complexity.

The pair iterators of the maps are separeted from the maps.

Some macros and comments has been changed.

 BINARIES = bfs_test min_cost_flow

 INCLUDEDIRS= -I../.. -I.. -I../{athos,klao,marci,jacint,alpar,johanna,akos} 

 include ../makefile