ANSIfy

For all files under src/common, as well as related man pages under
src/lib/libc, or related headers under src/sys/sys: change u_intNN_t to
uintNN_t.

branches: 1.1.6; 1.1.18;
Merge libkern + libc common files. As requested by core.

sync with HEAD

Pull up following revision(s) (requested by tsutsui in ticket #1224):
common/lib/libc/gen/bswap64.c: revision 1.2
common/lib/libprop/prop_data.c: revision 1.10
common/lib/libc/inet/inet_addr.c: revision 1.2
common/lib/libc/hash/rmd160/rmd160.c: revision 1.4
common/lib/libc/gen/bswap32.c: revision 1.2
common/lib/libc/gen/bswap16.c: revision 1.2
common/lib/libc/arch/alpha/gen/byte_swap_4.S: revision 1.3
common/lib/libc/arch/sh3/string/memset.S: revision 1.2
common/lib/libc/arch/alpha/gen/byte_swap_2.S: revision 1.3
common/lib/libc/md/md5c.c: revision 1.3
common/lib/libc/hash/sha1/sha1.c: revision 1.3
common/lib/libc/md/md4c.c: revision 1.3
sys/sys/rmd160.h: revision 1.2
sys/sys/sha2.h: revision 1.2
For all files under src/common, as well as related man pages under
src/lib/libc, or related headers under src/sys/sys: change u_intNN_t to
uintNN_t.