Support scaling processes 0 to n

[clee704]

#14 made it possible to scale processes from 0 to any quantity, but #29 removed this feature. Currently, we can do this by the following hack (assuming there is no worker process running for myapp):

import heroku
from heroku.models import Process
h = heroku.from_key(...)
app = h.apps['myapp']
Process.new_from_dict({'process': 'worker'}, h, app=app).scale(10)

But it would be best to be supported officially.

[thedrow]

How do we solve this? What went wrong with #29?

[ThisGuyCodes]

Seems like #29 made it only spawn one off processes. Shameless bump for this fix.

[BenLiyanage]

FWIW this hack totally works for me.

[edmorley]

This project has been deprecated for some time, and is now being sunset.

We recommend that you use the maintained https://github.com/martyzz1/heroku3.py instead.