Add plugin / adapted to Mootools version

Added @emmerich 's improved version of Benjamin BUFFET's work,
originally from http://en.benjaminbuffet.com/labs/flot/
rename file
jsfiddle and bug fix

Added jsFiddle example
Changed jQUery's innerHeight() with Mootools getSize()
Merge pull request #8 from SergioCrisostomo/addOn

Added moo.flot.orderBars plugin