r51526: fix wrong parameter order in call to egw.config() by removing it completly, as session is anway instance specific (and due to wrong order returned key was always empty)
r51527: garding againts data set in egw object by reference from an other window, causing data to be inaccessible in IE after window closes
r51528: removing an other unnecessary egw_info[flags][js_link_registry]=true