Skip staging branch on CI; require acceptance tests before deploying to Heroku (#2642)
Skip staging branch on CI; require acceptance tests before deploying to Heroku (#2642)

* Ignore CI builds for staging branch

* Require acceptance before deploying to Heroku

kanaabe/force,izakp/force,kanaabe/force,xtina-starr/force,anandaroop/force,yuki24/force,damassi/force,erikdstock/force,damassi/force,mzikherman/force,erikdstock/force,artsy/force,mzikherman/force,artsy/force,joeyAghion/force,yuki24/force,xtina-starr/force,eessex/force,cavvia/force-1,artsy/force,erikdstock/force,mzikherman/force,eessex/force,anandaroop/force,oxaudo/force,artsy/force-public,damassi/force,kanaabe/force,xtina-starr/force,oxaudo/force,erikdstock/force,anandaroop/force,kanaabe/force,mzikherman/force,oxaudo/force,eessex/force,yuki24/force,cavvia/force-1,joeyAghion/force,eessex/force,anandaroop/force,izakp/force,izakp/force,yuki24/force,artsy/force,joeyAghion/force,joeyAghion/force,oxaudo/force,izakp/force,cavvia/force-1,cavvia/force-1,kanaabe/force,artsy/force-public,damassi/force,xtina-starr/force