added failing test for getting (non-)shared services when the individual setting deviates from the default setting
added failing test for getting (non-)shared services when the individual setting deviates from the default setting

weierophinney/zend-servicemanager,MadCat34/zend-servicemanager,akrabat/zend-servicemanager,prolic/zend-servicemanager,matwright/zend-servicemanager