* src/vteglyph.c(_vte_glyph_get): quiet a compiler warning.
* src/iso2022.c: use KSX-1001 instead of KSC-5601 for Korean, add maps for
	CNS 11643 planes 3,4,5,6,7 (can't test them, but hey).  Rework so
	that we get the data before it's passed to g_iconv(), and stuff
	gunichars into an array for the caller.
* src/interpret.c: adapt to changes in the iso2022 interfaces.
* src/vte.c: adapt to changes in the iso2022 interfaces.
* src/mkunitables.sh: add snippets for KSX 1001.
* src/iso2022.txt: add iso-2022-cn example text.