in services pom.xml jre 1.6 -> 1.7
added wicketstuff annotationeventdispatcher dependency to web module
added AjaxRefreshEvent event class
tasks are returned in order mandated by ordernum column
new service method for requesting tasks not completed
TasklistTasksLDM gets only the tasks that are not yet completed
checking task completed removes it from the not completed tasks lists displayed in the UI