Don't put UTF8 last in the list of encodings

Don't put UTF8 last in the list of encodings

Sometimes, BIG5 will be selected for english text if quotes make it
not representable in ASCII. See [1] for the original bug report.

This default list is arguably European-centric but at least it documents a good
amount of the alternative encodings.

[1]: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=659920

Reported-by: James Cloos <cloos@jhcloos.com>
Signed-off-by: Etienne Millon <me@emillon.org>