Recognize RedHat7 and Debian7 in Bosco scripts.
Be pickier about the exit status of file transfer child processes. #4332

Now that the exit status of a Create_Thread() child is more reliable,
flag an error if the status anything other than exit code 1.
experimental config knobs to set default print-formats for status & q #4241
===VersionHistory:None===
Merge branch 'V8_1_6-branch'