Sync better from sources.

Sync better from sources.

* CXTERM-DIC/ARRAY30.tit, CXTERM-DIC/4Corner.tit:
* CXTERM-DIC/QJ.tit, CXTERM-DIC/QJ-b5.tit:
Omit blank lines not present in the original.
* CXTERM-DIC/CCDOSPY.tit:
* CXTERM-DIC/PY-b5.tit:
* CXTERM-DIC/SW.tit, CXTERM-DIC/TONEPY.tit:
* MISC-DIC/pinyin.map, MISC-DIC/ziranma.cin:
Clarify which header lines were added for Emacs.
* CXTERM-DIC/README:
Clarify what changes we made, and where the files came from.
* MISC-DIC/README, MISC-DIC/pinyin.map, MISC-DIC/ziranma.cin:
Update URLs.
* SKK-DIC/SKK-JISYO.L: Update from upstream.