Stats review and documentation. Related to #644.

See merge request !269

Implementing Issue688

Closes #688

See merge request !267

In relation to #676: Removed the warning level switch because it was too...

See merge request !266

In relation to #676: Removed the warning level switch because it was too intrusive. Implemented a small fix to the qos value saved in the historical database.

Contributing to #676. If the proj.conf file is not found, a warning will be...

See merge request !265

Contributing to #676. If the proj.conf file is not found, a warning will be thrown. If any of the other conf files is missing, a Critical Exception will be raised and the program should stop.

Fixed #682. Added the autosubmit pklfix expid command that will restore the backup pkl file

Closes #682

See merge request !264

Failed jobs bugfix

See merge request !262

Presubmission final changes

See merge request !263

Presubmission changes ( sleep was triggered for all jobs instead of only if hold directive is present)

Fixed #683: We should now take finish time from the function input instead of time()

Closes #683

See merge request !261