added loops and gradlnb
added loops and gradlnb

rkube/feltor,feltor-dev/feltor,feltor-dev/feltor,mwiesenberger/feltor,rkube/feltor,e3reiter/feltor,e3reiter/feltor,e3reiter/feltor,rkube/feltor,mwiesenberger/feltor,e3reiter/feltor,mwiesenberger/feltor,rkube/feltor,e3reiter/feltor,mwiesenberger/feltor,rkube/feltor,feltor-dev/feltor,feltor-dev/feltor