Remove compass step from postinstall
Remove compass step from postinstall

(We don't otherwise need compass in our continuous integration scheme, and
it's not worth changing that for this small, documentable item.)

antoniodesouza/SpiderOakMobileClient,SpiderOak/SpiderOakMobileClient,SpiderOak/SpiderOakMobileClient,antoniodesouza/SpiderOakMobileClient