바인더 하나에 콜백을 관리하는 방향으로
Merge remote-tracking branch 'origin/service' into merge

Conflicts:
	BlinkLibrary/src/kr/poturns/blink/internal/BlinkLocalService.java
	BlinkLibrary/src/kr/poturns/blink/internal/MessageProcessor.java
	BlinkLibrary/src/kr/poturns/blink/internal/comm/BlinkServiceInteraction.java
	Demo/VisualizerAsGlass/src/kr/poturns/blink/demo/visualizer/GlassActivity.java