Merge pull request #3484 branch 'hotfix/array-to-string-conversion'
replace native in_array with Stdlib
string/int safe inArray implementation
mark empty value as selected with form select
replace array_merge with ArrayUtils::merge
Revert PR #3088 as discussed in #3265.

- Reverts a9aa0a2
- Reverts df6eb13
- Reverts 1ec40d0
Fixed bug in acl introduced by acca10b6abe74b3ab51890d5cbe0ab8da4fdf7e0
Fixed CS? My local php-cs-fixer did not show any errors
[#3513] CS fixes
Merge branch 'hotfix/3513' into develop

Forward port #3513
Merge branch 'pr/revert-308' of git://github.com/spiffyjr/zf2 into hotfix/3511
[#3511] Add missing import

- was missing RecursiveIteratorIterator
- Updated copyright year
[#3511] Update copyright on reverted files

- Updates the copyright to 2013 on all files touched by revert
Merge branch 'hotfix/3511' into develop

Close #3511
Fixes #3265
Merge branch 'patch-1' of git://github.com/radnan/zf2 into hotfix/3510
Merge branch 'hotfix/3510' into develop

Close #3510
Fixes #3370
Merge branch 'patch-4' of git://github.com/radnan/zf2 into feature/3509
Merge branch 'feature/3509' into develop

Close #3509
Fixes #3426
Initial Ibm Db2 driver classes
Added working Ibm Db2 unit & integration tests