Update span names so they match stuff described in the tracing guidelines.
Update span names so they match stuff described in the tracing guidelines.

niels4/node-tryfer,tryfer/node-tryfer,betable/node-tryfer,betable/node-tryfer,niccaluim/node-tryfer,cjthompson/node-tryfer,cjthompson/node-tryfer,cjthompson/node-tryfer,tryfer/node-tryfer,niels4/node-tryfer,niels4/node-tryfer,betable/node-tryfer,niccaluim/node-tryfer,tryfer/node-tryfer,niccaluim/node-tryfer