Add proposed update for choosing between `before` and `beforeEach`

[jrschumacher]

I know this is a radical change, but I am submitting it more as a discussion piece rather than an actual pull request.

[slnode]

Can one of the admins verify this patch? To accept patch and trigger a build add comment ".ok\W+to\W+test."

[seriousben]

:+1: This would be useful to us.

[ritch]

Hope to land this soon... @seriousben

[jrschumacher]

@ritch because this is probably going to take some time to test and determine if its even viable could you look at #43?

[bajtos]

@slnode test please