Theme/Plugin FlexSlider conflict resolution, only add 'flexslider' class to metaslider output once page is ready (this means that other plugins can't override Meta Slider with their own calls to flexslider)

git-svn-id: https://plugins.svn.wordpress.org/ml-slider/trunk@815423 b8457f37-d9ea-0310-8a92-e5e31aec5664