merge trunk

dune/common/array.hh

dune/common/arraylist.hh

dune/common/bartonnackmanifcheck.hh

dune/common/binaryfunctions.hh

dune/common/collectivecommunication.hh

dune/common/debugstream.hh

dune/common/densematrix.hh

dune/common/densevector.hh

dune/common/deprecated.hh

dune/common/dynmatrix.hh

dune/common/finitestack.hh

dune/common/float_cmp.hh

dune/common/fmatrix.hh

dune/common/fmatrixev.hh

dune/common/forloop.hh

dune/common/ftraits.hh

dune/common/fvector.hh

dune/common/gcd.hh

dune/common/genericiterator.hh

dune/common/gmpfield.hh