GitLab

Tested against biomaj 3.0.13

- Reformatted code following pep8 (ignored E501 (line too long))
- Added new option -H/--keep_history allowing not to store only the production data from
  a bank, but also the releases history. Thus, it is almost a complete migration of bank
  history life.
- Now storing the logfile (from biomaj1.2.x) into the session field.

New MySQL connector for python 2 and 3

Updates to get right production info

Set correct session id from production creation date
Avoid duplicate session while migrating again