PSR-2 : add space between for, if, do(..) while, while and open parentheses
Merge branch 'version/bump'

Bump to 2.1.4dev
Added accessor for validation group
Added tests
Merge commit 'refs/pull/3826/head' of github.com:zendframework/zf2 into hotfix/cs
Merge pull request #3826 branch 'hotfix/cs'
Forward port #3826
Merge commit 'refs/pull/3861/head' of github.com:zendframework/zf2 into hotfix/add-getter-form-validationgroup
[#3861] micro optimization
Merge pull request #3861 branch 'hotfix/add-getter-form-validationgroup'
Forward port #3861
Allow NULL parameter values in Zend/Json/Server

Allow NULL as an acceptable value for non-optional method parameters.
Added test case
Fixed formatting issue
Merge branch 'master' of git://github.com/djskinner/zf2 into hotfix/3767
[#3767] CS fixes

- indentation, trailing_spaces
Merge branch 'hotfix/3767' into develop

Forward port #3767