Add unfollow_many_users and update the documentation of unfollow_user and follow_many_users
Add unfollow_many_users and update the documentation of unfollow_user and follow_many_users

SergioChan/Stream-Framework,smuser90/Stream-Framework,Anislav/Stream-Framework,SergioChan/Stream-Framework,smuser90/Stream-Framework,izhan/Stream-Framework,izhan/Stream-Framework,turbolabtech/Stream-Framework,izhan/Stream-Framework,turbolabtech/Stream-Framework,SergioChan/Stream-Framework,izhan/Stream-Framework,turbolabtech/Stream-Framework,smuser90/Stream-Framework,Anislav/Stream-Framework,turbolabtech/Stream-Framework,Anislav/Stream-Framework,smuser90/Stream-Framework,Anislav/Stream-Framework,SergioChan/Stream-Framework