Merge pull request Vanthink-UED#75 from zaguini/master

Update vue-core-image-upload.vue

Author: JackPu

src/vue-core-image-upload.vue

@@ -151,6 +151,7 @@
  this.data.comprose = 100 - this.compress;
  return canvasHelper.crop(targetImage, this.data, (code) => {
  upload(code);
+ this.__dispatch('imagechanged', code);
  })
  }
  upload();
@@ -166,6 +167,7 @@
  this.data.comprose = 100 - this.compress;
  return canvasHelper.resize(targetImage, this.data, (code) => {
  upload(code);
+ this.__dispatch('imagechanged', code);
  })
  }
  upload();