2.28.0 release (previous 2.27.5) + release notes updated by CI build …

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[ci skip-release]

doc/release-notes/official.md

@@ -1,5 +1,9 @@
 <sup><sup>*Release notes were automatically generated by [Shipkit](http://shipkit.org/)*</sup></sup>
 
+#### 2.28.0
+ - 2019-05-28 - [3 commits](https://github.com/mockito/mockito/compare/v2.27.5...v2.28.0) by [Tim van der Lippe](https://github.com/TimvdLippe) (2), [Christoph Wagner](https://github.com/WagnerChristoph) (1) - published to [![Bintray](https://img.shields.io/badge/Bintray-2.28.0-green.svg)](https://bintray.com/mockito/maven/mockito/2.28.0)
+ - Add missing 'be' in javadoc [(#1720)](https://github.com/mockito/mockito/pull/1720)
+
 #### 2.27.5
  - 2019-05-24 - [9 commits](https://github.com/mockito/mockito/compare/v2.27.4...v2.27.5) by 6 authors - published to [![Bintray](https://img.shields.io/badge/Bintray-2.27.5-green.svg)](https://bintray.com/mockito/maven/mockito/2.27.5)
  - Commits: [Erhard Pointl](https://github.com/epeee) (3), [Jakub Vrána](https://github.com/vrana) (2), [David Genesis Geniza Cruz](https://github.com/davidgenesiscruz) (1), [Frank Pavageau](https://github.com/fpavageau) (1), [Ryan Pickett](https://github.com/hdpe) (1), [Tom Ball](https://github.com/tomball) (1)

version.properties

@@ -1,8 +1,8 @@
 #Currently building Mockito version
-version=2.28.0
+version=2.28.1
 
 #Previous version used to generate release notes delta
-previousVersion=2.27.5
+previousVersion=2.28.0
 
 #Not published currently, see https://github.com/mockito/mockito/issues/962
 mockito.testng.version=1.0