Merge branch 'hotfix/prefer-form-input-filter-flag-default'

Close #5028
[2.2.4] Release preparations

- Bumped VERSION
- Created CHANGELOG
- Updated README
Merge branch 'releases/2.2.4'

2.2.4 readiness
Bump to next dev version

- 2.2.5dev
Merge branch 'releases/2.2.4' into develop

2.2.4 readiness

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

Bump to dev version

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