Progress bar for executeJob()

[nickdickinson]

While importing data, the job percentage does not change until finished.

Should we perhaps implement a progress bar or is it preferable for the logging to have these messages?

[akbertram]

It depends on the size of the import. I believe the percentage is updated every 200 records. So if you import less than this you won't see much granularity.

Other jobs don't provide progress at all.

I believe the utils package exposes some text bar interface, so I'll leave this open.

[nickdickinson]

Ok noted. So we'll only expose a progress bar if there are more than X amount of records, e.g. 200.