drush 8.x-6.0-rc4

Closes #21842.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
update sbt --devel to 0.13.0-RC5

Closes #21850.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
alembic: interpolate version
apgdiff: interpolate version
briss: interpolate version
checkstyle: interpolate version
cssembed: interpolate version
fleet-db: interpolate version
frege: interpolate version
htmlcompressor: interpolate version
ivy: interpolate version
js-test-driver: interpolate version
libmowgli: interpolate version
linklint: interpolate version
logstash: interpolate version
nuttcp: interpolate version
tika: interpolate version
yuicompressor: interpolate version
nailgun: use write_jar_script
cracklib-words: interpolate version