updated Doxyfile for newer doxygen
updated Doxyfile for newer doxygen

ufz/tclap,ufz/tclap,mc-server/TCLAP,xguerin/tclap,xguerin/tclap,mjkoo/tclap,mc-server/TCLAP,Qointum/tclap,xguerin/tclap,Qointum/tclap,eile/tclap,bb-generation/tclap,mirror/tclap,xguerin/tclap,eile/tclap,eile/tclap,bb-generation/tclap,mirror/tclap,eile/tclap,bb-generation/tclap,ufz/tclap,bb-generation/tclap,mc-server/TCLAP,Qointum/tclap,mirror/tclap,mjkoo/tclap,mirror/tclap,mjkoo/tclap