Replaced spaces with tabs for indentation.
Updated MinionsController interface.

Added close() method, removed endpoints parameter from stopMinions() call (controller should not know about endpoints). Updated ManualMinionsController, no need for @Component and @Service for now.
Added Utils class to Orchestrator and moved utility methods there.
Implemented CrankstartMinionsController.

CrankstartMinionsController is a MinionsController that uses Crankstart to start/stop Minions. If the Orchestrator is started with Crankstart, the CrankstartConstants.CRANKSTART_JAR_PATH property would point to the Crankstart JAR file, which the Orchestrator can use to initialize CrankstartMinionsController.