GH_6 - Update copy of Foundation to latest SCSS and JS

Updated (fetched upstream in my fork of Foundation), and copied across the SCSS and JS files so that are based on latest.

This process will be amended in the future to automate it. Also, still need to resolve issue around JS file minimising etc (https://github.com/Ippoippo/ippoippo.github.com_source/issues/2)

Signed-off-by: Ippoippo <ippoippo_software@ippoippo.net>
Merge branch 'refs/heads/gh_issue6_update_foundation_copy'