update toc, add conversejs, add mpl license

toc still unsorted

README.md

@@ -14,7 +14,7 @@ Table of Contents
 - [Blogging Platforms](#blogging-platforms)
 - [Bookmarks & Link Sharing](#bookmarks--link-sharing)
 - [Calendar and Address Books](#calendar-and-address-books)
-- [Communication Systems](#communication-systems)
+- [Messaging](#communication-systems)
 - [Content Management Systems (CMS)](#content-management-systems-cms)
 - [Download Tools](#download-tools)
 - [Federated Identity/Authentication](#federated-identityauthentication)
@@ -107,6 +107,7 @@ Table of Contents
   * [Roundcube](https://roundcube.net) - A web interface to act as an IMAP frontend ([Screenshots](https://roundcube.net/screens/)) ([Source code](https://github.com/roundcube/roundcubemail/)) `GPLv3` `PHP`
 
 ### XMPP
+  * [Converse.js](https://conversejs.org/) - A free and open-source XMPP chat client in your browser ([Source](https://github.com/jcbrand/converse.js)) `MPL` `Javascript`
   * [ejabberd](http://www.ejabberd.im) - A robust, scalable, and extensible XMPP server - `GPL` `Erlang`
   * [Kaiwa](http://getkaiwa.com) A modern XMPP Web client ([Source code](https://github.com/digicoop/kaiwa))
   * [Kontalk](http://kontalk.org/) – Kontalk is an Open Source Messenger, similiar to WhatsApp (app for android only currently), including end-to-end encryption, server is based on Tigase XMPP Server - ([Source code](https://github.com/kontalk)) - `GPLv3`
@@ -478,6 +479,7 @@ CMS are a practical way to setup a website with many features. CMS often come wi
  * `GPLv2` - [GNU General Public License 2.0](https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html)
  * `GPLv3` - [GNU General Public License 3.0](http://www.gnu.org/licenses/gpl-3.0.en.html)
  *  `MIT` - [MIT License](http://opensource.org/licenses/MIT)
+ *  `MPL` - [Mozilla Public License](https://www.mozilla.org/MPL/2.0/index.txt)
 
 
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