edit DAGMan-specific configuration explanation, section 2.10.8.5   #4352
edits to clarify DAGMan that dag_status is used in 2 different ways in 2
different contexts #4380
Merge branch 'V8_2-branch' into V8_3_0-branch

Conflicts:
	doc/misc/jobad.tex
Merge branch 'V8_3_0-branch'