Here is how I got it working on Macbook Pro 2015. And as yzh503 said, we will have to deal with network drivers after the install.

1) Download and install rEFind with the following command (use without quotes).
"sudo ./install.sh --notesp"

2) Create a bootable USB using the following tutorial.
http://docs.kali.org/downloading/kal...ve-usb-install

3) Restart the machine and keep holding "Option" Key until you see the boot menu.

4) Select the "EFI Boot" or whatever the name of your bootable device is.

Voila!!! You should now be able to live boot or install Kali Linux 2.0 on your machine.