Added User profiles so users can change their username

rpg-docs/Model/Users/Users.js

@@ -1,35 +1,44 @@
 Schema = {};
 
 Schema.User = new SimpleSchema({
-    username: {
-        type: String,
-        regEx: /^[a-z0-9A-Z_]{3,15}$/
-    },
-    emails: {
-        type: [Object],
-        // this must be optional if you also use other login services like facebook,
-        // but if you use only accounts-password, then it can be required
-        optional: true
-    },
-    "emails.$.address": {
-        type: String,
-        regEx: SimpleSchema.RegEx.Email
-    },
-    "emails.$.verified": {
-        type: Boolean
-    },
-    createdAt: {
-        type: Date
-    },
-    services: {
-        type: Object,
-        optional: true,
-        blackbox: true
-    },
-    roles: {
-        type: [String],
-        optional: true
-    }
+	username: {
+		type: String,
+		regEx: /^[a-z0-9A-Z_]{3,15}$/,
+		optional: true
+	},
+	emails: {
+		type: [Object],
+		// this must be optional if you also use other login services like facebook,
+		// but if you use only accounts-password, then it can be required
+		optional: true
+	},
+	"emails.$.address": {
+		type: String,
+		regEx: SimpleSchema.RegEx.Email
+	},
+	"emails.$.verified": {
+		type: Boolean
+	},
+	createdAt: {
+		type: Date
+	},
+	services: {
+		type: Object,
+		optional: true,
+		blackbox: true
+	},
+	roles: {
+		type: [String],
+		optional: true
+	}
 });
 
 Meteor.users.attachSchema(Schema.User);
+
+Meteor.users.allow({
+	update: function (userId, doc, fields, modifier) {
+		return userId === doc._id &&
+			fields.length === 1 &&
+			fields[0] === 'username';
+	}
+});