HTCondorWiki: Dag Man Design Docs

 Here are the areas that should be documented (see gittrac #2815).  I re-ordered them somewhat to make the list more logical in terms of related functionality.
 
+*: {wiki: DagOverview Overview of DAGMan}
 *: {wiki: CondorSubmitDag Condor_submit_dag/scheduler universe startup}
 *: {wiki: DagFileParsing DAG file parsing}
 *: {wiki: RescueDag Rescue DAG/condor_rm of DAGMan}
 *: {wiki: DagRecovery Recovery mode/condor_hold/condor_release}
 *: {wiki: JobOrdering Proper ordering of jobs/scripts (ready queue, etc.)}
 *: {wiki: PrePostSemantics Implementation of PRE/POST script semantics}
-*: {wiki: ReadUserLogs Reading the user logs}
+*: {wiki: ReadUserLogs Monitoring node jobs/reading the user logs}
 *: {wiki: DagIsFinished Deciding when the DAG is finished}
 *: ABORT-DAG-ON
 *: {wiki: DagFinalNode DAG final node}