update widget version to 1.0.0

Author: dmitry-mukhin

plugin.js

@@ -1,10 +1,10 @@
 // Uploadcare CKeditor plugin
-// Version: 1.2.0
+// Version: 1.3.0
 
 CKEDITOR.plugins.add('uploadcare', {
     init : function(editor) {
         var me = this;
-        var widget_version = '0.17.2';
+        var widget_version = '1.0.0';
         var widget_url = 'https://ucarecdn.com/widget/' + widget_version +
                          '/uploadcare/uploadcare-' + widget_version + '.min.js'