Merge pull request #250 from TakayukiHoshi1984/bugfix_host_light

iPad mini等、ライト非対応機種で、ライト機能を動かすと異常終了する不具合を修正。

Author: TakayukiHoshi1984

dConnectDevicePlugin/dConnectDeviceHost/dConnectDeviceHost/Classes/DPHostService.m

@@ -57,7 +57,13 @@ - (instancetype) initWithFileManager: (DConnectFileManager *) fileMgr plugin: (i
         [self addProfile:[DPHostCanvasProfile new]];
         [self addProfile:[DPHostTouchProfile new]];
         [self addProfile:[DPHostGeolocationProfile new]];
-        [self addProfile:[DPHostLightProfile new]];
+
+        AVCaptureDevice *captureDevice = [AVCaptureDevice defaultDeviceWithMediaType:AVMediaTypeVideo];
+        if ([captureDevice isTorchAvailable]
+            && [captureDevice isTorchModeSupported:AVCaptureTorchModeOn]
+            && [captureDevice isTorchModeSupported:AVCaptureTorchModeOff]) {
+            [self addProfile:[DPHostLightProfile new]];
+        }
     }
     return self;
 }