API - gracefulReload is not a function

[Naphier]

http://pm2.keymetrics.io/docs/usage/pm2-api/
still has reference to gracefulReload, but some clues in the issues here makes me believe it's deprecated and gone. Especially since calling it tosses up 'is not a function' throw.
thanks.

[Unitech]

Doc updated. Use reload, it does the same thing