Add Deprecated annotations.

Author: RobAtticus

src/main/java/com/iobeam/api/resource/Device.java

@@ -17,6 +17,7 @@ public class Device implements Serializable {
     /**
      * A wrapper class around a String that uniquely identifies the device.
      */
+    @Deprecated
     public static final class Id implements Serializable {
 
         private final String id;

src/main/java/com/iobeam/api/service/DeviceService.java

@@ -73,6 +73,7 @@ public GetDevice get(final String deviceId) {
         return new GetDevice(deviceId);
     }
 
+    @Deprecated
     public GetDevice get(final Device.Id deviceId) {
         return get(deviceId.getId());
     }
@@ -138,6 +139,7 @@ public Delete delete(String deviceId) {
         return new Delete(deviceId);
     }
 
+    @Deprecated
     public Delete delete(Device.Id deviceId) {
         return delete(deviceId.getId());
     }