add some dependencies to OSX build instructions

README.md

@@ -104,6 +104,8 @@ Time to build: *1 day*
    sudo port install lame
    sudo port install speex
    sudo port install gsl
+   sudo port install libquicktime-devel
+   sudo port install jack
 
 </code>
 6. Download the source code *(3-6 minutes)*