Modified the LUFA USB HID Descriptor to change the logical/usage minimums for System Control from 0x01 (Mouse) to 0x81 (System Power Down), this fixes OS X recognizing the Planck as having a mouse and tablet, even with mousekeys off.
Added a loop for waiting for the keyboard to be put in bootloader mode, rather than failing out. Makes building keymaps easier.
Travis La Marr