Merge remote-tracking branch 'illumos-ml/master' into titanic

Some zev merge conflicts fixed.

Conflicts:
usr/src/uts/common/fs/zfs/zfs_ioctl.c
usr/src/uts/common/fs/zfs/zvol.c

2408 CJK character width handled incorrectly in terminal emulators (missing widths-2.txt)