updated to libpd pd_045-4 & externals
only need to setup expr once
vu init value is now -100, fixes issue where vu bars were being drawn by default
updated socket lib
added Heading test, should have been added in Nov
fixed issue where OSC server was not restarting after the listening port was changed, reset text field on bad port num
updated test patches to no longer require [import mrpeach] for osc