Merge branch 'next' into fix/contain-label-name

# Conflicts:
#	src/component/axis/CartesianAxisView.ts
#	src/component/axis/axisBreakHelper.ts
#	src/coord/cartesian/Grid.ts
#	src/coord/cartesian/GridModel.ts
#	src/echarts.all.ts
#	src/export/features.ts
#	src/label/labelStyle.ts
#	src/util/graphic.ts
#	src/util/types.ts
#	test/build/mktest-tpl.html
#	test/lib/testHelper.js
#	test/tmp-base.html