Fixed bug handling a list of CCB servers in CCB_ADDRESS. #3699
(Hopefully) fixed a Coverity warning in DAGMan; plus other minor
code cleanup.
Converted the VARS data for each node from a pair of lists to a single
list -- much less chance of things getting goofed up...
Merge branch 'V8_0-branch' of /p/condor/repository/CONDOR_SRC into V8_0-branch
Merge branch 'V8_0-branch'