Added Evaluator#eval(nodes)
Added Evaluator#eval(nodes)

jangarcia/stylus,johnnycopperstone/stylus,jonpacker/stylus,ThiagoGarciaAlves/stylus,PeterWangPo/stylus,Delapouite/stylus,meteor/stylus,galenvagen/stylus,Zagorakiss/stylus,baotingfang/stylus,angryrobot/stylus,modulexcite/stylus,silvaemota/stylus,jameswomack/stylus,isaacs/stylus,rstacruz/stylus,yetone/stylus,trixter5/stylus,cemoulto/stylus,darwin/stylus,Panya/stylus,SimenB/stylus,a-x-/stylus,behzad88/stylus,HossainKhademian/Stylus,peterkinalex/stylus-1,Ricardh522/stylus,stylus/stylus,tyv/stylus