Move bb() double-functionatity (sleep+throw alarm but also tell about
it) to snore() and keep bb() without info output.

Also add dotsleep() to double down on the outputting by producing dots
while sleeping.

(Yeah, I know, weirdly specific and likely not very useful.)

Turns out what also breaks it is what might be a bug in Bash causing
HIST* vars in Debian's .bashrc trim the history immediately, before wwe
get a chance to set it to a huge number.

The workaround -- which cannot be done safely within bashum -- is to
comment any HIST* variables in your .bashrc.

We already call it that way internally.

On Fedora, commonmark is from nodejs-commonmark, which is long-term
broken.

lrep() and prep() repeat every line, or whole stream, on stdin
$1 times.

People can now run

    __bashum_run_n 100 echo hello world

and it will print "hello world" 100 times, instead of just running
`echo` 100 times and ignoring the `hello world` part.

'darkzen' color profile for HTMLs generated by mdvimb

Get current version at https://netvor.info/scripts/mdvimb

Work around, obey, or disable.

Mostly for easier visual distinction and also for fun.

'x' meaning primary, 'xx' meaning 'C-C' and 'v' meaning vipe(1).