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##### SUMMARY
<!--- Explain the problem briefly below -->

`python-gitlab` library release a new version [v1.13.0](https://github.com/python-gitlab/python-gitlab/releases/tag/v1.13.0). User/Password authentication as been removed completely causing all Ansible GitLab module to fail... 

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->

gitlab_group
gitlab_deploy_key
gitlab_hook
gitlab_project
gitlab_project_variable
gitlab_runner
gitlab_user

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
All versions

changed = False
        
        if self.groupObject is None:
            parent_id = self.getGroupId(parent)
            group = self.createGroup({
                'name': name,
                'path': options['path'],
                'parent_id': parent_id,
                'visibility': options['visibility']})
            changed = True
        else:
            changed, group = self.updateGroup(self.groupObject, {
                'name': name,
                'description': options['description'],
                'visibility': options['visibility']})
        self.groupObject = group
        if changed:
            if self._module.check_mode:
                self._module.exit_json(changed=True, msg="Successfully created or updated the group %s" % name)
            try:
                group.save()
            except Exception as e:
                self._module.fail_json(msg="Failed to update group: %s " % e)
            return True
        else:
            return False
    '''
    @param arguments Attributes of the group
    '''
    def createGroup(self, arguments):