Nested section updates to js.
updated nested section code styles
Fix order of operation when calculating margin for forms in rows
Bump section to 4.1.3, updated Section docs to show nested example.
Add data-options support to Reveal.
Update section docs with vertical-tabs example.
Merge pull request #2204 from lukebussey/clearing-layout-fix

Fix for clearing thumbs layout #2068
updated conflict
Merge pull request #2212 from andrewgleave/normalize-file-input-width

Normalize file input width to 100% to prevent overflow on mobile layouts...
Fix section docs formatting.
Merge branch 'master' of github.com:zurb/foundation
Merge pull request #2225 from baudoin/fix-topbar-min-height

Altered the min-height value being applied to .top-bar on mobile
Change the way custom form elements are hidden.
Merge branch 'master' of github.com:zurb/foundation
Fix regression in section optional config.
Fix #2220 - Documentation change for top bar

Added mention of section class="top-bar-section" to documentation, which
seems to be a new requirement for Foundation 4's top bar
Matched reveal sizes to reflect documentation
fix column float for rtl (noted: $default-float == right when $text-direction == rtl)
Merge branch 'master' of https://github.com/zurb/foundation
Added glowing effect variables in documentation