Move roster models into their own module

src/config.js

@@ -93,6 +93,7 @@ require.config({
         "converse-profile":         "src/converse-profile",
         "converse-register":        "src/converse-register",
         "converse-roomslist":       "src/converse-roomslist",
+        "converse-roster":          "src/converse-roster",
         "converse-rosterview":      "src/converse-rosterview",
         "converse-singleton":       "src/converse-singleton",
         "converse-vcard":           "src/converse-vcard",

src/converse-rosterview.js

-// Converse.js (A browser based XMPP chat client)
+// Converse.js
 // http://conversejs.org
 //
-// Copyright (c) 2012-2017, Jan-Carel Brand <jc@opkode.com>
+// Copyright (c) 2012-2018, the Converse.js developers
 // Licensed under the Mozilla Public License (MPLv2)
-//
-/*global define */
 
 (function (root, factory) {
     define(["converse-core",
@@ -39,7 +37,7 @@
 
     converse.plugins.add('converse-rosterview', {
 
-        dependencies: ["converse-modal"],
+        dependencies: ["converse-roster", "converse-modal"],
 
         overrides: {
             // Overrides mentioned here will be picked up by converse.js's
@@ -82,6 +80,7 @@
             _converse.api.settings.update({
                 'allow_chat_pending_contacts': true,
                 'allow_contact_removal': true,
+                'roster_groups': true,
                 'show_toolbar': true,
                 'xhr_user_search_url': null
             });

src/converse-vcard.js

@@ -63,6 +63,10 @@
 
     converse.plugins.add('converse-vcard', {
 
+        // FIXME: After refactoring, the dependency switches, from
+        // converse-roster to converse-vcard
+        dependencies: ["converse-roster"],
+
         overrides: {
             // Overrides mentioned here will be picked up by converse.js's
             // plugin architecture they will replace existing methods on the

src/converse.js

@@ -22,6 +22,7 @@ if (typeof define !== 'undefined') {
         "converse-notification",    // HTML5 Notifications
         "converse-otr",             // Off-the-record encryption for one-on-one messages
         "converse-ping",            // XEP-0199 XMPP Ping
+        "converse-roster",
         "converse-register",        // XEP-0077 In-band registration
         "converse-roomslist",       // Show currently open chat rooms
         "converse-vcard",           // XEP-0054 VCard-temp