[FEATURE] Add max-width and border-radius
Add a the class 'fixed' when navigation is 'stuck'

In line 117 the class 'fixed' is removed from the navigation without ever being added.

I assume the intention was to add a class to the navigation when it is stuck to the window so that additional skinning via CSS can be done (thats what i actually wanted to do but didn't find this functionality yet).
Browsing through the code i saw that you REMOVE a class 'fixed' when the navigation is 'unstuck' but you never add it.
This fixes that.

When the navigation sticks to the top it has the class 'fixed', as soon as it gets 'unstuck' the class is removed.
Fix for Firefox's image width bug

Fix for Firefox bug #975632 - https://bugzilla.mozilla.org/show_bug.cgi?id=975632.

I created an issue for this - https://github.com/zurb/foundation/issues/5576.
Updating Reveal Modal example with Video
Removing PR code that broke some paths
Merge pull request #1 from zurb/master

update to Foundation origin
change `background` to `background-color` in tabs to allow styling of theis other background properties
Edit side-radius mixin to take account changes made to the default styling of form elements (issue #5368) on webkit browsers for the mixin to be able to override such changes when needed. This commit partially addresses issue #5553.
Merge pull request #5516 from ste101/patch-3

[FEATURE] Add max-width and border-radius
Fix URL to Icon Fonts
Merge branch 'master' of https://github.com/zurb/foundation
Switch to compatible dash character in comments

Prevents error on SASS compile referenced in #5398
Fix for #5556 - Wrap division with parentheses
Fixed typo on abide docs
Merge pull request #5608 from xaro/patch-1

Fixed typo on abide docs
Updating Magellan examples
Move JoyRide and add switches to kitchen sink
Merge branch 'master' of https://github.com/zurb/foundation
Updating JS Files to 5.3.3
Merge branch 'master' of https://github.com/zurb/foundation