portmidi: fix LIMIT_RATE checks so overriding actually works
Merge branch 'update/portmidi' into update/portmidi-v206
portmidi: update limit rate patch to use #if instead of #ifdef
pm_mac/finddefault.c and pm_mac/readbinaryplist.c are no longer in newer portmidi versions
updated to portmidi v2.0.6
portmidi: add github reference link
update Makefile for newer Portmidi versions which drop finddefault.c, readbinaryplist.c, and pmlinux.h
portmidi: reenable script cleanup