Adding 'run' button to code demo.
Adding 'run' button to code demo.

git-svn-id: 2cf55447cea94972d775c94cce66c944ede0459c@225 c400ca83-b69d-9dd7-9705-49c6b8615e23

adrgerez/ardublockly,tobyk100/blockly-trunk,peterkinmond/mazely,CocoMake7/CocoBlockly,kallex/blockly,peterkinmond/mazely,TechplexEngineer/EasyJ4FRC,TechplexEngineer/EasyJ4FRC,tobyk100/blockly-trunk,tjpalmer/blockly,carlosperate/ardublockly,CocoMake7/CocoBlockly,kallex/blockly,bollwyvl/Blockly,jadonk/blockly-bonescript,tobyk100/blockly-trunk,adrgerez/ardublockly,jadonk/blockly-bonescript,tobyk100/blockly-trunk,TechplexEngineer/EasyJ4FRC,CocoMake7/CocoBlockly,bollwyvl/Blockly,Khan/blockly,Khan/blockly,tjpalmer/blockly,adrgerez/ardublockly,TechplexEngineer/EasyJ4FRC,carlosperate/ardublockly,carlosperate/ardublockly