Brought back storemixin as there's no way to mixin a class and a mixin at the moment, plus I foresee any component that extends BreadcrumbSegment to use the storemixin.
Brought back storemixin as there's no way to mixin a class and a mixin at the moment, plus I foresee any component that extends BreadcrumbSegment to use the storemixin.

dcos/dcos-ui,dcos/dcos-ui,dcos/dcos-ui,dcos/dcos-ui,dcos/dcos-ui