Before, snapshotted schemes could contain guisp= attributes, or
term=undercurl, which caused errors when used with vim 6. Now, if the
colorscheme detects that vim 6 is running, it will strip those from the
:highlight commands that get used. More incompatibilities might exist
that I can't think of, though...
And, add logic to snapshotted schemes to make them recognize konsole and
eterm in the same way as CSApprox proper, and, if they're found, use the
appropriate colors.
6ae5bdc943