port agraef's commit from Pd-l2ork: Make 'tar_em_up.sh -B -n' do the right thing, by moving the extra staging done by 'make deb' into a separate 'debstage' target. commit 73bf25e1dd5bd2dd37e04e7e163855d440542e43

port aa6126adae5613d337cc71cee17b0078485dcc05 from Pd-l2ork: added temporary fix for rtcmix build until it is fixed upstream

port 78d634e8dc84b3c11611480000357efeea0b0027 from Pd-l2ork: fixed regression as per Albert's request

add 105f71eba94f47ccdbf344f16a29758909a265e5 from Pd-l2ork: better pulling of submodules (TODO: add wiringpi as a submodule)

port a49a2bbc138b34080f36ad3d091e57db6bb0e7ba from Pd-l2ork: fixed segfault caused by the latest commit. Now everything should work including the RPi3.

port 07081a7590bc80a65d0a3f9a6fd6fa3f3b16e777 from Pd-l2ork: introduced potential fix for spi issues on RPi3

port 0120b99c59c8d79e28e2a54c4b081fac2ee93959 from Pd-l2ork: removed debugging info from the autotune external

port fa53423e426de1b0e54ba02f080b83b541d85b35 from Pd-l2ork: experimental update to disis_gpio and small bug fix to autotune

port 4a93e8e2ae2947d2322dde5d3233a68f82873774 from Pd-l2ork: minor improvements to the build script to accomodate new miXed submodule

port e885ea38fbe6f09d5ba38d5275444daf12077aa6 from Pd-l2ork: added redundant aclocal and autoconfig for the pd folder

*fixed typos and aesthetic positioning in the K12 demos and preset.pd

*cleaned up the help patch

*added K12 version of the autotune

(manual port-- left out the part about removing patched files since we never added them before)
*removed patched files for rtcmix since the bug has been fixed upstream
*removed patching step in the tar_em_up.sh

*added fftease as a submodule

*added git module lyonpotpourri

updated tar_em_up.sh from pd-l2ork git. Note: this probably includes changes
from later commits

*added rtcmix~ and autotune external to l2ork_addons, updated tar_em_up.sh script to include them in future pd-l2ork builds (needs testing, autotune needs better help file)

*updated cwiid (failed to do this in the last commit)

*added cwiid as a submodule repo (and removed it from the pd-l2ork source)
*added rtcmix-in-pd submodule repo