[FloatingActionButton] OverlayWhenHovered bug when using a FontIcon

[mikrofusion]

There is a style bug when hovering over a floating action button which contains a FontIcon.

      <FloatingActionButton
          className="material-icons"
          style={{ position: 'fixed', left: 100, top: 100 }}
        >
          <FontIcon
            style={styles.fontIcon}
            className="material-icons"
          >
            add
          </FontIcon>
        </FloatingActionButton>

[mikrofusion]

In addition to the hover color not filling the whole background I think it would be good if the user could override the overlay color which is hardcoded to 40% of the Icons color.

      overlayWhenHovered: {
        backgroundColor: ColorManipulator.fade(this._getIconColor(), 0.4)
      }

I'd be glad to try to tackle some of these if someone can give me some direction.

[oliviertassinari]

This is fixed with #967

[oliviertassinari]

@hai-cea I think you can close this issue.

[mikrofusion]

Confirmed fixed with #967. Closing.