renaming NoteConverter
Creating WebSynth as Backbone Events object

Linking up new js files.
Adding input controller to trigger events
Adding controller to handle WebAudio setup
Adding handy util mapping functions
Adding generic connect method for superclass
Creating setters and getters for LineModule
Extending LineModule, not BaseModule, into StepModule
Adding convenience methods in EnumModule
Responding to events, and playing sounds
Adding global properties to WebSynth object