Django-excel-tools

Changed
- Removed `BASE_MESSAGE` in fields

Added
- Translation for Japanese and Khmer
- `error_trans` util function for generate error message

Fixed
- Added validation for columns in excel is less than defined in serializer fields

Breaking Change
- Meta.django_enable_transaction has changed to enable_transaction

Changed
- Moved all fields class from `django_excel_tools.serializers` to `django_excel_tools.fields`
- Code refactored for `django_excel_tools.serializers.ExcelSerializer` to more readable and pure function that doesn't produce effect.

Added
- More test coverage