No layout options for full-width overrides e.g. flex-phone="100"

[jamesspencer]

With the changes to the layout system, there appear to be no way to override non-full-width flex attributes e.g. I would expect the following:

<div flex="30" offset="5" flex-phone="100" offset-phone="0"></div>

to be 30% width with 5% offset until the phone breakpoint is reached where it then becomes full width with zero offset.

As of #0.6.0-rc1-master-d515a6c, using flex-phone="100" or just flex-phone does not override flex="30" below the phone breakpoint.

Example plunkr