Fix default_data_quota module

- before this fix could be dataQuota set to unlimited even if limit was not unlimited
- now dataQuota can not be unlimited if limit is still limited
Merge pull request #307 from stavamichal/fix_default_data_quota

Fix default_data_quota module

- before this fix could be dataQuota set to unlimited even if limit was not unlimited
- now dataQuota can not be unlimited if limit is still limited