* This is a gimmick pseudo-game for driving a tank around your buffer.
* The tank is "animated" and crushes non-space characters it drives over.
* When shooting, it deletes characters that get hit.
* When escaping, the tank explodes and leaves a "crater" behind.

* strings are bold (if supported) and bright white
* comments are in italics (if supported by the terminal)
* otherwise this uses the same colors as terminal.tes
* should be well suited for monochrome terminals as well

* They would get the --program-prefix.
* If they aren't installed as real scripts, there is no point in fixing up their
  hash-bang lines.
* The hash-bang line fix won't work on Windows anyway, so they are now disabled for
  grosciteco and tedoc as well.

tecat.tes and repl.tes are now executable scripts, even though they are
installed into the $SCITECOPATH.

This is still much slower than the Lua version here:
https://gist.github.com/rhaberkorn/6534ecf1b05de6216d0a9c33f31ab5f8

* Unfortunately, this will currently just terminate when some command fails.
  We require an error catching mechanism to fix this up.

Especially useful since Gtk users are supposed to edit ~/.teco_css.

* Unfortunately, the Lexilla lexer does not recognize PostgreSQL multiline
  strings between $$...$$.
* All of the other SQL variants, that Scite supports, are skipped for the time
  being. They'd probably have to be separate SciTECO lexer configs anyway.

They don't require Lexilla, so it makes no sense not to exclude them.

* Highlights both 1st level and 2nd level quotes and signatures.
* This also sets the edge to 78 columns, as is recommended for email and
  enables word wrapping.
  The edge mode is not set, since it kind of looks ugly in Scinterm.
* Helps when using SciTECO as the email editor for instance in the
  Aerc mail client.
* Unfortunately, we cannot set up Scintilla to automatically break words
  after 78 columns (or perhaps that's a good thing).
  You can use the M#rf reformat-paragraph macro to reflow paragraphs
  before sending the mail.
  This will take the edge column into account even if no edge mode is set.