exitCode undefined, report correct for fake FJR

@mmascer, please include this also new TW release for tomorrow. Thanks
Merge pull request #4567 from juztas/patch-5

exitCode undefined, report correct exitCode for fake FJR
Check if the fjr has input files before the upload
Use re.sub instead of lstrip. Fix #4566
Add back really old database alter table

For tm_output_dataset
Fix table name in updateOracle.sql
Adding hcxrootd activity to the allowed ones