Removed functions from .each loop

Reduced the number of times the $(window).scroll & stickyMenu functions were being called by removing them from the .each loop and placing them outside.
Each function was called 'n' times where 'n' is the number of $smintItems
Also added a check for smint-disableAll for external links

(I should not have deleted the demo folder, now this just seems a big mess)

Also check out the demo here http://termvader.github.io/smint/