Per space label, icon, description

Labels introduce visual grouping and filtering of spaces.

gui/app/components/ui/ui-icon-meta.js

@@ -0,0 +1,35 @@
+// Copyright 2016 Documize Inc. <legal@documize.com>. All rights reserved.
+//
+// This software (Documize Community Edition) is licensed under
+// GNU AGPL v3 http://www.gnu.org/licenses/agpl-3.0.en.html
+//
+// You can operate outside the AGPL restrictions by purchasing
+// Documize Enterprise Edition and obtaining a commercial license
+// by contacting <sales@documize.com>.
+//
+// https://documize.com
+
+import { computed } from '@ember/object';
+import Component from '@ember/component';
+
+export default Component.extend({
+	tagName: 'i',
+	classNames: [''],
+	classNameBindings: ['calcClass'],
+	icon: null,
+
+	calcClass: computed(function() {
+		let icon = this.icon;
+		let constants = this.get('constants');
+
+		if (is.null(icon)) {
+			return '';
+		}
+
+		if (is.empty(icon)) {
+			icon = constants.IconMeta.Apps;
+		}
+
+		return 'dmeta ' + icon;
+	})
+});