fix the comment of graph figure
resolve #48 neume.Sched receive a schedule iterator
resolve #49 $.param(name) -> $("@name")
change ugen name rule
$("@param") support inputs
resolve #50 add $("#id") interface
remove $("local-in"), $("local-out")
add neume.UGen#sched(schedIter: iterator, callback: function)
change default interface name: Neume -> neu
clean test code
remove unused code
remove neume.SynthDef
remove $("dadsr")
remove toFrequency()
remove unused code
change util.defaults() receive varargs
change ugen method interface
fix lack of event types
fix abbr of attributes
update examples