v2.0.4

Luckily v2.0.3 should never have been used. We named some messages inconsistently, fixing that in this version.

• Rename Schemas:
  • gdbots:ncr:command:update-node-labels
  • gdbots:ncr:command:update-node-tags
  • gdbots:ncr:event:node-labels-updated
  • gdbots:ncr:event:node-tags-updated