Add checkHNname command.
Check that config param dbsUrl is a local DBS instance if inputDataset tier is USER.
crab remake now only take one task per run
Merge pull request #4204 from qunox/remakesingle

crab remake now only take one task per run
Merge pull request #4196 from AndresTanasijczuk/dbs

Check dbsUrl is a local DBS instance if inputDataset tier is USER
Merge pull request #4187 from AndresTanasijczuk/checkHNname

Add checkHNname command.