message: Update CHANGELOG for 7.0.2
diff: @@ -11,18 +11,21 @@ tag versions. The Bond compiler (`gbc`) and
  different versioning scheme, following the Haskell community's
  [package versioning policy](https://wiki.haskell.org/Package_versioning_policy).
  -## Unreleased ##
  -* `gbc` & compiler library: TBD
  -* IDL core version: TBD
  -* IDL comm version: TBD
  -* C++ version: TBD
  -* C# NuGet version: TBD
  -* C# Comm NuGet version: TBD
  +## 7.0.2: 2017-10-30 ##
  +* `gbc` & compiler library: 0.10.1.0
  +* IDL core version: 2.0
  +* IDL comm version: 1.2
  +* C++ version: 7.0.2
  +* C# NuGet version: 7.0.1
  +* C# Comm NuGet version: 0.14.0
  ### C++ ###
  * Fixed a memory leak when deserializing Bond-over-gRPC messages that were
  stored as multiple slices.
  +### C# ###
  +* There were no C# changes in this release.
  +
  ## 7.0.1: 2017-10-26 ##
  * `gbc` & compiler library: 0.10.1.0
  * IDL core version: 2.0
  