advanced image handler (issue #4)

This version introduces multiple enhancements:

added libraries and skins for jcrop plugin

Details of additions/deletions below:
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Added:      BLUE_FRAMEWORK/elements/css/jquery.Jcrop.min.css
Added:      BLUE_FRAMEWORK/elements/js/jquery.color.js
Added:      BLUE_FRAMEWORK/elements/js/jquery.Jcrop.min.js
Added:      skin/images/Jcrop.gif