Header restyle in small/med, footer links in menu

Header restyle in small/med, footer links in menu

- Logo text now drops into tab-bar in medium/small view
- Header image & slideshow now have correct margin below top bar
  on medium/small view
- Max size added to header image & slideshow
- Members only link added to OC if not logged in (otherwise show
  OC members only section)
- Header text/logo area preserved into OC overlay
- New facebook items added for off-canvas (recolor)
- Footer items now derived from admin-set appearance>menu 'footer-
  links'
- fixed top-margin on members only pages
- fixed messed up div tags in OC