No need for Modular Scale for our tests
Updated Gemfile to newest gem versions
Removed Breakpoint import

We should throw warnings of Breakpoint isn't found, but because we're aiming for a larger audience than just Compass extensions, we can't rely on just being able to import Breakpoint
Don't automatically include clearfix and box-sizing

They can be optional imports, but don't need to be (and shouldn't be) automatically included
Optional Box Sizing and Clearfix imports updated

Now only providing support for modern browsers. If a user would like a more comprehensive box-sizing or clearfix mixin, they should get one
Updated Span Shared

Basic clearfix/border-box, or using a mixin if they exist
Move to list separator from Ruby based is-breakpoint-list
!global change
!global for tests
New Box Sizing and Clearfix tests for new output
New Compass default cross-browser support adds -webkit prefix
Updated parsing removes inspect (parses instead)
New Clearfix/Box Sizing Handling means new CSS
Inspect gets parsed, new box-sizing and clearfix