
20080328 - patch from dan stowell with some nice efficiencies saving 1/3 cpu
         - use RTAlloc/RTFree in MembraneCirc.cpp
20080330 - zero allocated memory...
         - combine Membrane and MembraneCirc into Membrane.cpp, giving
           MembraneCircle and MembraneHexagon UGens
         - some tweaks by Dan Stowell while adding to the sc3-plugins SVN repository
