Navigation Drawer and Header Pop

[gauntface]

At the moment, the initial CSS pushes the header to the right by adding a margin to account for the nav drawer.

This is removed by JS once it kicks in, but this causes a pop on load.

Originally reported on Web Fundamentals.
google/WebFundamentals#1869

[surma]

The drawer is being moved out of the frame later by a transform.

@addyosmani @sgomes Should we add a style hiding the drawer element until is-upgraded is added?

[sgomes]

@surma Yup, that's sort of the solution I've already coded :)

[surma]

Go @sgomes! 👏

[gauntface]

Is this ok to get into 1.0.5?

[sgomes]

Yes, it's already merged into the mdl-1.0 branch and will make it to 1.0.5.

[surma]

Closing this as #1657 has landed.