Merge pull request #5724
Merge pull request #5647 in develop
replaced array_key_exists to isset for performance
removed & in  since its failing test
add some unit test verifying nulls as array key or if its array values
added test to cover if second array arg has null value
Fix persistence with multi dispatch
Provide dispatch like a XmlHttpRequest
Fix for issue #5629
Removed phpunit.xml
Removed @package and updated DocBlock with return self
fix strange exception message
Add allowed_object_binding_class to fieldset.
Add tests for Fieldset::allowObjectBinding() method
Implementation of inTransaction() in all Zend\Db\Adapter\Drivers
[FIX] Undefined property in void return
added a submodule loading to testCanLoadMultipleModules
Updated Bulgarian translation
Zend\Config\Writer\PhpArray - quote strings as var_export would
Merge pull request #5757 from ralphschindler/hotfix/config-writer-phparray-needs-to-respect-the-double-quote

Zend\Config\Writer\PhpArray needs to use var_export for strings, not addslahes()