Make the bot go through the normal branch-green-merge process

[msprotz]

Right now the hint auto-regeneration thing (target: fstar-nightly) relies on dzomo, the bot, being administrator on the F* project because of the branch restriction.

• This is unfortunate and weakens security.
• If we give the bot just write access, then the bot will have to push to a branch, get a green, and merge into master.
• This can be achieved by putting MERGEME in the commit message, then pushing to branch dzomo. Then, the next job (target: fstar-ci), upon getting a green on the branch, will try to merge it.
• However, how can we delay the merge & push of the branch to master, long enough so that VSTS gives that goddamn green to GitHub?

nohup merge_branch

where

merge_branch () {
  sleep 60 # long enough for GitHub to receive a green
}

?

I doubt that this will work