update new version

Author: 黄书伟

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vue-easytable",
-  "version": "1.5.0",
+  "version": "1.5.1",
   "description": "vue table component",
   "main": "libs/index.js",
   "author": "https://github.com/huangshuwei",
@@ -10,7 +10,7 @@
     "url": "git+https://github.com/huangshuwei/vue-easytable.git"
   },
   "files": [
-    "libs"
+    "libs","umd"
   ],
   "dependencies": {
     "nprogress": "^0.2.0",