Update Refreshed.skin.php

Adding in logo SVGs made so far, changing arrow URL so the server stops using the old cached version
Renaming arrow images, adding mobile sprite, changing right sidebar icon
Removing mobile-expand.png

Unneeded because of mobile-icon-sprite.png
Merge pull request #14 from MtMNC/patch-3

All looks fine - Adding in SVG icons, renaming arrow images, adding in mobile sprite, changing right sidebar icon