Translation updates (zh_TW converted to UTF-8)

src/bin/initdb/po/zh_TW.po

src/bin/pg_controldata/po/zh_TW.po

src/bin/pg_ctl/po/zh_TW.po

src/bin/pg_dump/po/zh_TW.po

src/bin/pg_resetxlog/po/zh_TW.po

src/bin/psql/po/zh_TW.po

src/bin/scripts/nls.mk

src/bin/scripts/po/zh_TW.po

src/interfaces/libpq/po/zh_TW.po