Breakpoint variables not scoped properly

[rykener]

In scss/utils/_breakpoint.scss (see here) the variables like $small-up and $large-down are scoped only to the if statements in which they are defined.

The solution for this problem is to define the variable before the if statement (as null or an empty string), and then allow the if statement to give it the value desired.

This bug is blocking our organization from fully migrating off of Foundation 5

How to reproduce this bug:

1. Try to use the $small-up variable

What should happen:

The code should compile

What happened instead:

Undefined variable: "$small-up"

Foundation Version(s) you are using:

6.4, the issue goes back at least to 6.3