Merge pull request mdmsoft#210 from softark/add-extra-fields

Small enhancements on the Assignment pages

prepare new release depend on new `deesoft/yii2-angular` ext.

Prepare new release

bug fix

fix mdmsoft#190. include `main.css` only for main layout

add version alias for previous release

Merge pull request mdmsoft#159 from przeqpiciel/patch-1

Create Polish

Merge pull request mdmsoft#141 from liyunfang/patch-1

add Chinese translate

readme

Merge pull request mdmsoft#74 from marsuboss/master

Translate French