update userSchema

lib/models/user.js

@@ -29,7 +29,7 @@ module.exports = function(crowi) {
     userId: String,
     image: String,
     isGravatarEnabled: { type: Boolean, default: false },
-    isEmailPublished: { type: Boolean, default: false },
+    isEmailPublished: { type: Boolean, default: true },
     googleId: String,
     name: { type: String },
     username: { type: String, required: true, unique: true },