Import nvi-2.1.1-4334a8297f into the work area. This is the gsoc-2011
project to clean up and backport multibyte support from other nvi forks
in a form we can use.
GSoC info: http://www.google-melange.com/gsoc/proposal/review/google/gsoc2011/zy/1
Repo at: https://github.com/lichray/nvi2
Obtained from: Zhihao Yuan <lichray@gmail.com>