When the width of parent container is too narrow, text in tag will be
break into lines.
當父容器寬度不足時，Tag 文字會產生換行的現象

* Add yarn.lock

* Update travis config

* Use yarnpkg registry

* DatePicker: fix clear button, fixed #1690

* DatePicker: fix reset button style

* DatePicker: fix set value

* DatePicker: fix test

* ✨ [Table] Added fluid height table with maxHeight prop (#1560)

* 🚨 [Table] Added test for maxHeight prop (#1560)

* 📚 [Table] Added the documentation of fluid-height table (#1560)