Merge branch 'hotfix/3856'

Close #3856
[2.1.3] release prep

- Updated changelog
- Updated readme
- Updated Zend\Version
Merge branch 'releases/2.1.3'

2.1.3 readiness
Merge branch 'releases/2.1.3' into develop

2.1.3 readiness

Conflicts:
	README.md
	library/Zend/Version/Version.php
Version bumped to 2.1.4dev
Merge branch 'version/bump' into develop

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