add new userSchema

lib/models/user.js

@@ -156,6 +156,14 @@ module.exports = function(crowi) {
     });
   };
 
+
+  userSchema.methods.updateisEmailPublished = function(isEmailPublished, callback) {
+    this.isEmailPublished = isEmailPublished;
+    this.save(function(err, userData) {
+      return callback(err, userData);
+    });
+  };
+
   userSchema.methods.updatePassword = function(password, callback) {
     this.setPassword(password);
     this.save(function(err, userData) {