Merge branch 'hotfix/2759' into develop

Forward port #2759
Merge branch 'hotfix/2764' into develop

Forward port #2764
Merge branch 'hotfix/2782' into develop

Forward port #2782
Merge branch 'hotfix/2679' into develop

Forward port #2679
Add zend test phpunit lib

Add zend test phpunit lib
Add tests for zend test phpunit lib

Add tests for zend test phpunit lib
Fix psr2

Fix psr2
Add docblock for getter
Improve Zend\Code\Scanner\TokenArrayScanner

TokenArrayScanner has now a method hasNamespace(). It is used to check, whether a specific classname was found
Create factory for dbselect
Test modules loaded
Fix psr2

Fix psr2
Fix psr2

Fix psr2
RELATES #2532 implement buffer handling to HydratingResultSet
Zend\Db\Sql\TableIdentifier now allowed in Zend\Db\Sql\Insert::into(), Update::table() & Delete::from() (not only in Select::from() & Sql::__construct())
Catch render exceptions and trigger dispatch error

Catch exceptions thrown when EVENT_RENDER is triggered, clean up all output, trigger EVENT_DISPATCH_ERROR, and finally re-trigger EVENT_RENDER
Catch exception, cleanup, and re-throw when rendering model
Clear child models before injecting in case of error
clear out child models
Implemented clearChildren()