Info map of NODE_MOVED event on node reordering is not according to spec

According to JSR-283 "If the method that caused the NODE_MOVE event was a Node.orderBefore then the returned Map has keys srcChildRelPath and destChildRelPath with values corresponding to the parameters passed to the orderBefore method, as specified in the Javadoc." As the attached patch for the ReorderTest test case shows this is not the way jackrabbit behaves. Instead it looks like the value of the srcChildRelPath entry in the info map is really the destChildRelPath and destChildRelPath info entry seems to always be null.