add Pathname.write_binary
add helpers for formula tests
use test helpers
aamath: add 0.3 bottle.
aardvark_shell_utils: add 1.0 bottle.
ack: add 2.12 bottle.
aha: add 0.4.7.2 bottle.
algol68g: add 2.8 bottle.
align: update 1.7.3 bottle.
ansifilter: update 1.8 bottle.
autopano-sift-c: add 2.5.1 bottle.
bash: add 4.3.18 bottle.
calc: add 2.12.4.8 bottle.
cbmbasic: add 1.0 bottle.
cksfv: add 1.3.14 bottle.
csv-fix: add 1.6 bottle.
csvprintf: add 1.0.3 bottle.
gptfdisk: add 0.8.10 bottle.
htmlcleaner: add 2.8 bottle.
hub: add 1.12.2 bottle.