Merge pull request #27 from TwizzyDizzy/master

Added OpenFire (Communication Systems), Updated elgg (Social Networks), Added Roundcube (Communication Systems) Added jump anchor for wikis section.

README.md

@@ -44,6 +44,7 @@ Table of Contents
   * [Social Networks](#social-networks)
   * [Software Development Platforms](#software-development-platforms)
   * [URL Shorteners](#url-shorteners)
+  * [Wikis](#wikis)
 
 ## Analytics
 
@@ -102,7 +103,9 @@ Table of Contents
   * [Prosody](http://prosody.im/) – Modern XMPP server written in Lua.
   * [Kandan](http://getkandan.com/) – Kandan is an Open Source Alternative to HipChat. - `GNU-AGPL`
   * [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`
+  * [OpenFire](http://www.igniterealtime.org/projects/openfire/) - instant messaging (XMPP) and groupchat server written in Java - `Apache License 2.0`
   * [Rocket.Chat](http://rocket.chat/) – Teamchat solution similar to Gitter.im or Slack - `MIT`
+  * [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`
   * [Kaiwa](http://getkaiwa.com) A modern XMPP Web client ([Source code](https://github.com/digicoop/kaiwa))
   * [Shout](http://shout-irc.com/) -The self-hosted web IRC client ([Demo](http://demo.shout-irc.com/), [Source code](https://github.com/erming/shout)) `MIT` `Nodejs`
 
@@ -325,7 +328,7 @@ CMS are a practical way to setup a website with many features. CMS often come wi
   * [BuddyPress](http://buddypress.org/about/) - A powerful plugin that takes your WordPress.org powered site beyond the blog with social-network features like user profiles, activity streams, user groups, and more.
   * [Diaspora](https://diasporafoundation.org/) - Distributed social networking service. - `GNU-AGPL-3.0`
   * [Discourse](http://www.discourse.org/) - Advanced forum / community solution based on Ruby and JS - `GNU-GPL-2.0`
-  * [Elgg](https://www.elgg.org/) - a powerful open source
+  * [Elgg](https://www.elgg.org/) - a powerful open source social networking engine - `GPLv2`
   * [Friendica](http://friendica.com/) - Social Communication Server ([Source code](https://github.com/friendica/friendica)) `GNU AGPL 3.0`
   * [Gnu Social](http://gnu.io/social/) - social communication software for both public and private communications
   * [Jappix](https://jappix.com/) - Jappix is an open social platform, that let's you easily get or keep in touch with everyone.