Don't use windows domain for ConnectQ() in the gridmanager.  #4568

The job owner name that can be passed to ConnectQ() shouldn't include a
Windows domain. Other uses of the myUserName variable don't need the
domain either, so just leave it off when parsing the -o command line
argument. We do need it for init_user_ids().
Remove WIFEXITED calls from batch_test and redefine dagman
node status rm. Turns out dagman does not handle condor_rm
on windows. #4520
complete documentation of new 8.3.1 knob  #4353
Merge branch 'V8_3_1-branch'
mark as executable. #4520
Merge branch 'V8_2-branch'

Conflicts:
	src/condor_tests/job_dagman_node_status_rm.run