Dynamic memory cleanup, and move from static report buffer size to dynamic

- Running the command: "led.red; print free; led.off; print free" from
  HQ no more than five times would crash the Lead Scout.  Also running this
  command from the Serial Monitor more than five times would crash the
  Lead Scout.

-  After applying this change, I was able to run the above command over 30
  times with no crashing, both in HQ and the Serial Monitor.  Sometimes HQ
  was slow to send the command to the Lead Scout, but it always sent it after
  a few seconds. I attribute this to lag or perhaps Carlo--but it was not
  crashing the Lead Scout anymore.