-remove useless/broken configure options, and gnunet_directories.h

git-svn-id: https://gnunet.org/svn/gnunet@31290 140774ce-b5e7-0310-ab8b-a85725594a96
-indentation, doxygen, logging

git-svn-id: https://gnunet.org/svn/gnunet@31291 140774ce-b5e7-0310-ab8b-a85725594a96