* src/base/ftutil.c: ft_mem_alloc and related functions now return an error if a negative size is passed in parameters. * src/cache/ftccache.c: make ftc_node_destroy FT_BASE_DEF, it needs to be exported for rogue clients * src/pshinter/pshglob.c: prevent problems with malformed fonts which have an odd number of blue values (these are broken according to the specs). * src/cff/cffload.c, src/type1/t1load.c: modify the loaders to force even-ness of 'num_blue_values'. Also change the CFF loader so that invalid entries in index files are ignored.