0.3.88 release (previous 0.3.87) + release notes updated [ci skip]

Author: shipkit-org

docs/release-notes.md

@@ -1,5 +1,9 @@
 <sup><sup>*Release notes were automatically generated by [Shipkit](http://shipkit.org/)*</sup></sup>
 
+#### 0.3.88
+ - 2020-01-18 - [1 commit](https://github.com/linkedin/ambry/compare/v0.3.87...v0.3.88) by [Rob Block](https://github.com/lightningrob) - published to [![Bintray](https://img.shields.io/badge/Bintray-0.3.88-green.svg)](https://bintray.com/linkedin/maven/ambry/0.3.88)
+ - Add custom serializer to reduce size of CloudBlobMetadata [(#1358)](https://github.com/linkedin/ambry/pull/1358)
+
 #### 0.3.87
  - 2020-01-16 - [1 commit](https://github.com/linkedin/ambry/compare/v0.3.86...v0.3.87) by [Ze Mao](https://github.com/zzmao) - published to [![Bintray](https://img.shields.io/badge/Bintray-0.3.87-green.svg)](https://bintray.com/linkedin/maven/ambry/0.3.87)
  - Add HTTP2 port type and generalize ConnectedChannel [(#1351)](https://github.com/linkedin/ambry/pull/1351)

version.properties

@@ -1,4 +1,4 @@
 #Version of the produced binaries. This file is intended to be checked-in.
 #It will be automatically bumped by release automation.
-version=0.3.88
-previousVersion=0.3.87
+version=0.3.89
+previousVersion=0.3.88