vim.sh: adjust shTodo
vim.sh: heredocs - kill support for old vim versions
vim.sh: remove some orphan highlights
vim.sh: recognize shIfList inside exprs
vim.sh: garbage
vim.sh: adjust functions
vim.sh: remove variables/declarations, too inconsistent
vim.sh: remove aliases
vim.sh: fix functions
sh.vim: parens
vim.sh: fix subshells
sh.vim: clean up clusters