Multitouch cleanup, added nx.setViewport() to nexusUI

setViewport is a way for objects to dynamically scale the page — i.e.
you could hook up a dial or button to resize the viewport on mobile
devices on-the-fly
Updating PHP relay

No longer need getsymbol for floats or strings, but still need it for
lists. This should be avoidable — the OSC PHP library we’re using has a
special way of typecasting arrays, I just haven’t cracked it yet…