release: bump version 2.6.3

Author: seawind543

dist/react-customize-token-input.css

@@ -6,4 +6,4 @@
 
 /*! For license information please see index.js.LICENSE.txt */
 
-/*! react-customize-token-input v2.6.3-alpha.1 | (c) 2018 Mark Lin. | MIT | https://github.com/seawind543/react-token-input */
+/*! react-customize-token-input v2.6.3 | (c) 2018 Mark Lin. | MIT | https://github.com/seawind543/react-token-input */

dist/react-customize-token-input.css.map

@@ -1,6 +1,6 @@
 {
   "name": "react-customize-token-input",
-  "version": "2.6.3-alpha.1",
+  "version": "2.6.3",
   "description": "A react token (tag) input component. Allow customize data structure and Look & Feel",
   "keywords": [
     "react",