First work around run_tracker.py

New version of the old `illumina_finished_msg.py`

It is not finished and needs more thorough tests, but is growing too much. I think is better if you have a look and help me to spot possible issues or raise any question.

The script is intended to be ran as a cronjob, like the current one, but for X Ten data.

@vezzi we need to decide what to transfer to Uppmax, but I guess that first we need to clarify how the new demultiplexed data looks like with indexed flowcells. 

Have fun!