v0.4.0

Four new scenes, a couple of surprises, and a speed control that leaves the clock alone.

• dog, after tanim: a dog runs, naps and chases butterflies in a meadow as the day goes by. oxiper -s dog
• fireworks, after tanim: rockets bursting into sparks over a city skyline. oxiper -s fireworks
• metaballs, after tanim: glossy blobs merging like drops of gel. oxiper -s metaballs -t synthwave
• hollywood, after Dustin Kirkland's hollywood: tiled panes that keep re-splitting, 19 widgets (hex dumps, packet sniffers, kernel panics, radar, satellite tracking, ACCESS DENIED, ssh-keygen randomart, code…) and about ten times the technobabble. babble goes from 0 (plain logs) to 10. oxiper -s hollywood
• Easter eggs. Every so often, about once an hour and never in the first minute, sl's steam locomotive (sometimes with its accident) or the duck from duckpond.sh crosses whatever scene is playing and is gone within 30 seconds. They never appear in a playlist. eggs = "none" turns them off, egg_rate sets how often they come, and E calls one right away.
• Speed is only speed. speed, a scene's pace, --speed and the + - keys now change only how fast things move. Clocks keep real time: at a tenth of the speed the aquarium still changes biome every five minutes, its day still lasts fifteen, a grown bonsai still waits its wait and Nyan Cat's counter still counts real seconds.
• Painted water. -o aquarium.water=deep paints the sea with a gradient, slow shafts of light and sandy dunes, after tanim's aquarium. The default stays clear, so translucent terminals stay see-through.

Full Changelog: v0.3.0...v0.4.0