[SW] Big5 and utf-8 in Vim

To make Vim open big5 files properly, just set the following

set fileencodings=utf-8,big5,euc-jp,gbk,euc-kr,utf-bom,iso8859-1
set encoding=utf8
set tenc=utf8

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Ref: http://wiki.debian.org.tw/index.php/Unicode#VIM