Add KChat (resolve #1176).

Add crtmpserver (resolve #1169).
Add draw.io (resolve #1188).

README.md

@@ -230,6 +230,7 @@ Some [Groupware](#groupware) solutions also feature calendar/address book editin
   * [Jitsi Meet](https://jitsi.org/Projects/JitsiMeet) - Jitsi Meet is an OpenSource (MIT) WebRTC Javascript application that uses Jitsi Videobridge to provide high quality, scalable video conferences. ([Source Code](https://github.com/jitsi/jitsi-meet)) `MIT` `Javascript`
   * [Jitsi Video Bridge](https://jitsi.org/Projects/JitsiVideobridge) - WebRTC compatible Selective Forwarding Unit (SFU) that allows for multiuser video communication. ([Source Code](https://github.com/jitsi/jitsi-videobridge)) `Apache` `Java`
   * [Kandan](http://getkandan.com/) - Kandan is an Open Source Alternative to HipChat. ([Source Code](https://github.com/kandanapp/kandan)) `AGPLv3` `Ruby`
+  * [kchat](https://github.com/php-kchat/kchat) - PHP Based Live Chat Aplication. ([Source Code](https://github.com/php-kchat/kchat)) `Apache` `PHP`
   * [Lets-Chat](http://sdelements.github.io/lets-chat/) - A self hosted chat suite written in Node. ([Source Code](https://github.com/sdelements/lets-chat)) `MIT` `Nodejs`
   * [Live Helper Chat](http://livehelperchat.com/) - Live Support chat for your website. ([Source Code](https://github.com/LiveHelperChat/livehelperchat)) `Apache` `PHP`
   * [Mattermost](http://www.mattermost.org/) - Open-source, on-prem Slack-alternative. It can be integrated with [Gitlab](https://about.gitlab.com/). ([Source Code](https://github.com/mattermost/platform)) `AGPLv3/Apache` `Go`
@@ -783,6 +784,7 @@ See also <https://en.wikipedia.org/wiki/List_of_streaming_media_systems>, <https
 
 ### Video Streaming
 
+  * [crtmpserver](http://www.rtmpd.com/) - High performance RTMP/RTSP streaming server. `GPLv3` `C++`
   * [CyTube](https://github.com/calzoneman/sync) - CyTube is a web application providing media synchronization, chat, and more for an arbitrary number of channels. ([Demo](http://cytu.be)) `MIT` `Nodejs`
   * [Emby](http://emby.media/) - A home media server built using other popular open source technologies. ([Source Code](https://github.com/MediaBrowser/Emby)) `GPLv2` `C#`
   * [Flumotion](http://flumotion.net/) - A streaming media server with intuitive graphical administration tools. ([Source Code](https://github.com/Flumotion/flumotion)) `LGPLv2` `Python`
@@ -866,6 +868,7 @@ See https://github.com/n1trux/awesome-sysadmin#monitoring and https://github.com
 *See also [Wikis](#wikis)*
 
   * [dillinger](http://dillinger.io/) - The last Markdown editor, ever. ([Source Code](https://github.com/joemccann/dillinger/)) `MIT` `Nodejs`
+  * [draw.io](https://draw.io) - Diagram software for making flowcharts, process diagrams, org charts, UML, ER and network diagrams. ([Demo](https://draw.io), [Source Code](https://github.com/jgraph/drawio)) `Apache 2.0` `JavaScript`
   * [HackMD](https://www.hackmd.io) - Realtime collaborative markdown notes on all platforms. ([Source Code](https://github.com/hackmdio/hackmd/)) `MIT` `Node.js`
   * [Laverna](https://laverna.cc/) - Laverna is a Javascript note taking application with Markdown editor and encryption support. Consider it like open source alternative to Evernote. ([Demo](https://laverna.cc/index.html#notes), [Source Code](https://github.com/Laverna/laverna)) `MPLv2` `Nodejs`
   * [Leanote](http://leanote.org/) - Leanote, Not Just A Notepad! Open source cloud notepad. ([Demo](https://leanote.com/note), [Source Code](https://github.com/leanote/leanote)) `GPLv2` `Go`