(=jis-x0208@1978): New coded-charset [moved from src/mule-charset.c].

(=jis-x0208@1978): New coded-charset [moved from src/mule-charset.c].
(=jis-x0208@1978/-4pr): Renamed from `=jis-x0208@1978/i-4'; specify
`final'.
(=jis-x0208@1978/1pr): Renamed from `=jis-x0208@1978/i1'; specify
`iso-ir' and `final', namely now it is used as ISO-IR-42.
(=jis-x0208@1978/4-pr): Renamed from `=jis-x0208@1978/i4-'.
(=jis-x0208@1978/i1): New alias for `=jis-x0208@1978/1pr'.
(=jis-x0208@1978/i-4): New alias for `=jis-x0208@1978/-4pr'.
(=jis-x0208@1978/i4-): New alias for `=jis-x0208@1978/4-pr'.