- Move wekan-postgresql back to https://github.com/wekan/wekan-postgresql   because there is many differences in database settings.
- Move wekan-postgresql back to https://github.com/wekan/wekan-postgresql
  because there is many differences in database settings.

Thanks to xet7 !

wekan/wekan,wekan/wekan,libreboard/libreboard,wekan/wekan,wekan/wekan,GhassenRjab/wekan,libreboard/libreboard,GhassenRjab/wekan,wekan/wekan,GhassenRjab/wekan