add missing semicolons

src/ImageDataHandler.js

@@ -17,14 +17,14 @@ function ImageDataHandler(img) {
         var cropData = {
             x: dragAxis === 'x' ? (viewportBounds.left - img.left) / (img.width * img.scaleX) : 0,
             y: dragAxis === 'y' ? (viewportBounds.top - img.top) / (img.height * img.scaleY) : 0,
-        }
+        };
 
         sessionStorage.setItem('cropData', JSON.stringify(cropData));
-    }
+    };
 
     this.removeCropData = function() {
         sessionStorage.removeItem('cropData');
-    }
+    };
 
     /**
      * Gets an object containing applied transformations for the Image and also