Pass message.receivedAt to plugins.
Merge pull request #390 from foldericon/patch-1

Pass message.receivedAt to plugins.
Grammar/spelling
Work on some threaded related crashes.
Merge branch 'upstreammaster'

# By Michael Morris (2) and foldericon (1)
# Via Michael Morris
* upstreammaster:
  Work on some threaded related crashes.
  Grammar/spelling
  Pass message.receivedAt to plugins.