Merge pull request #6 from zurb/master

Update Foundation
Fix bad code
Merge pull request #7 from zurb/master

Update Foundation
Remove menu icon specificity

Developers may want to use the menu-icon outside the tab-bar.

Currently this is restricted as the CSS selector requires the developer to make the menu icon a child of the tab-bar.

By removing .tab-bar in the selector selecting the menu icon developers will be able to use the menu-icon outside the tab-bar.
Merge pull request #5049 from winghouchan/remove-menu-icon-class-specificity

Remove menu icon class specificity