Version: 0.2.00.2.10.2.20.2.30.2.40.2.50.2.60.2.70.2.80.2.90.2.100.2.110.2.120.2.130.2.140.2.150.2.160.2.170.2.180.2.190.2.200.2.210.2.220.2.230.2.240.2.250.2.260.2.270.2.280.2.290.2.300.2.311.0.0
# Changes
1. `init` now returns a promise
2. User properties are now checked for changes before sending a message.