rearrange imports, lower tick delay
rearrange imports, lower tick delay

With a 1ms TICK delay the performance via the background task is pretty
reasonable and packets are flowing back and forth with JRMI connected
via IP.

bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn,bakerstu/openmrn