update dependencies
fix using empty constructor.name in Firefox
remove ugen/pan.js
modify NumSum.connect() refine
modify NeuSum.toAudioNode() refine
modify NeuSum constructor returns an optimized instance in response to inputs
remove NeuAdd, use NeuSum instead
clean binding AudioContext functions to NeuContext
change NeuUGen base class, NeuComponent -> Emitter
change name of creating neume component functions
remove NeuComponent#mul(a, b)
remove component/mul.js
remove NeuComponent#add(a, b)
change $(conv) not have mix attribute
modify NeuDryWet returns an instance of NeuDryWet
change util.typeOf return constructor name when given an instance
clean variable name, utils -> util
modify neume namespace
change location of espower-loader
remove Promise from dependencies