profile: Output heap profile after CPU profile finishes
profile: Output heap profile after CPU profile finishes

Right now, we only output a CPU profile when running the minion
profiler. But, it would also be useful to see where we're using
the most memory.

quilt/quilt,PenguinToast/quilt,kayousterhout/quilt,kklin/quilt,ejj/quilt-dev,LuiseV/quilt,kelda/kelda,kklin/kelda,kelda/kelda,kklin/kelda,kayousterhout/quilt,LuiseV/quilt,PenguinToast/quilt,kelda/kelda,stevenlin598/quilt,NetSys/quilt,kklin/quilt,kayousterhout/quilt,quilt/quilt,mmussomele/quilt,tejasmanohar/quilt,secant/quilt,stevenlin598/quilt,LuiseV/quilt,mmussomele/quilt,kklin/kelda,quilt/quilt,LuiseV/quilt,mmussomele/quilt,LuiseV/quilt,stevenlin598/quilt,kayousterhout/quilt,ejj/quilt-dev,kelda/kelda,PenguinToast/quilt,kklin/quilt,stevenlin598/quilt,mmussomele/quilt,stevenlin598/quilt,ejj/quilt-dev,PenguinToast/quilt,NetSys/quilt,secant/quilt,tejasmanohar/quilt,NetSys/quilt,tejasmanohar/quilt,secant/quilt,mmussomele/quilt,ejj/quilt-dev,PenguinToast/quilt,secant/quilt,kklin/kelda,tejasmanohar/quilt,stevenlin598/quilt,NetSys/quilt,kklin/quilt,NetSys/quilt,mmussomele/quilt,quilt/quilt,secant/quilt