Use blank bodies for invites/cancellations for first version.
Use blank bodies for invites/cancellations for first version.

The previous code contained dates in a confusing format. IMHO it's
better to leave the body blank by default and let the client pull out
whatever information it wants to display.

wakermahmud/sync-engine,nylas/sync-engine,ErinCall/sync-engine,gale320/sync-engine,wakermahmud/sync-engine,Eagles2F/sync-engine,gale320/sync-engine,gale320/sync-engine,nylas/sync-engine,nylas/sync-engine,wakermahmud/sync-engine,ErinCall/sync-engine,gale320/sync-engine,jobscore/sync-engine,Eagles2F/sync-engine,nylas/sync-engine,Eagles2F/sync-engine,jobscore/sync-engine,Eagles2F/sync-engine,closeio/nylas,ErinCall/sync-engine,ErinCall/sync-engine,closeio/nylas,wakermahmud/sync-engine,closeio/nylas,jobscore/sync-engine,wakermahmud/sync-engine,closeio/nylas,ErinCall/sync-engine,gale320/sync-engine,Eagles2F/sync-engine,jobscore/sync-engine