Make TopBar respond to $text-direction 

TopBar doesn't respond to `$text-direction: rtl` correctly. So I used `$default-float` and `$default-opposite` and it seems to be working.
Update pricing-tables.html.erb

Wrong mixin
Update grid.html.erb

Simple typo.
Merge pull request #1746 from CarlRevell/master

Very Simple Typo in Grid Component Docs
Update Zepto to 1.0, please test and report compatibility bugs.
Merge branch 'master' of github.com:zurb/foundation
Add Zepto outerwidth and outerheight patch back in.
Merge branch 'master' of github.com:zurb/foundation
Remove zepto methods that are included in the core.
Fix the height of the section element.
Remove console.log().
updated section horizontal-nav styles
Merge branch 'master' of github.com:zurb/foundation
updated section styles for vertical-nav, still working through some bits of it
setting img to inline-block as setting it to block for all images breaks most website layouts
setting img to inline-block as setting it to block for all images breaks most website layouts
setting img to inline-block as setting it to block for all images breaks most website layouts
setting img to inline-block as setting it to block for all images breaks most website layouts
Fix horizontal nav positioning.
Bump section.js version to 4.0.5