(sseq, module) appropriately; removed algebra/laurentpoly.h and added algebra/multivariate_laurentpoly.h. Added io, muladdeq to Z. Added functions open_file, close_file to lib/io.h. Added operator < to map_wrapper.
of gcc on newcomp. Use global reference (::) in linear_combination* typedefs in ring classes. Renamed linear_combiation::set set_coeff.
now deprecated SVN repository.