removed include of os.bubblechart.tree.js (file is already included in bubblechart.min.js)
removed include of os.bubblechart.tree.js (file is already included in bubblechart.min.js)

RCGTDev/openspendingjs,openspending/openspendingjs,openspending/openspendingjs-old,openspending/openspendingjs-old,openspending/openspendingjs-old,openspending/openspendingjs,RCGTDev/openspendingjs,openspending/openspendingjs,RCGTDev/openspendingjs,RCGTDev/openspendingjs,openspending/openspendingjs,openspending/openspendingjs-old