Merge branch 'hotfix/6423'

Close #6423
[2.3.2] Release readiness

- Updated version constant
- Created changelog
- Updated README
Merge branch 'releases/2.3.2'

2.3.2 release readiness
Merge branch 'releases/2.3.2' into develop

2.3.2 release readiness

Conflicts:
	README.md
	library/Zend/Version/Version.php
Bump to next dev version

- 2.3.3dev
Merge branch 'version/bump' into develop

Bump dev versions

Conflicts:
	README.md
	library/Zend/Version/Version.php