Add a new 'Clients' link to the entry template,

allowing to link to a list of clients, applications or software related to the project

* https://www.icecast.org/apps/
* https://wiki.mumble.info/wiki/3rd_Party_Applications
* https://github.com/osmlab/awesome-openstreetmap

A single link is allowed, so please try to find the best resource available about the subject,
such as an official list or a good quality community-maintained list.

* Ref https://github.com/Kickball/awesome-selfhosted/pull/1373
* add link to external list of clients/apps for icecast
* add link to external list of clients/apps/bots for mumble
* Closes https://github.com/Kickball/awesome-selfhosted/pull/1373
* Closes https://github.com/Kickball/awesome-selfhosted/pull/1359

.github/PULL_REQUEST_TEMPLATE.md

@@ -4,7 +4,7 @@ To ensure your PR is dealt with swiftly please check the following:
 
 - [ ] Your submissions are formatted according to the guidelines. 
         
-    ``- [Name](http://homepage/) - Short description, less than 250 characters. ([Demo](http://url.to/demo), [Source Code](http://url.of/source/code)) `License` `Language` ``
+    ``- [Name](http://homepage/) - Short description, less than 250 characters. ([Demo](http://url.to/demo), [Source Code](http://url.of/source/code), [Clients](https://url.to/list/of/related/clients-or-apps)) `License` `Language` ``
 
 - [ ] Your additions are ordered alphabetically.
 - [ ] Your additions are [Free software](https://en.wikipedia.org/wiki/Free_software), or if not they have been added to [non-free](non-free.md) and marked `⊘ Proprietary`.
@@ -12,5 +12,6 @@ To ensure your PR is dealt with swiftly please check the following:
 - [ ] Your additions have their `License` main server-side `Language`/platform/requirement listed.
 - [ ] Any licenses you have added are in our [list of licenses](https://github.com/Kickball/awesome-selfhosted/blob/master/README.md#list-of-licenses).
 - [ ] You have searched the repository for any relevant [issues](https://github.com/Kickball/awesome-selfhosted/issues) or [PRs](https://github.com/Kickball/awesome-selfhosted/pulls), incluing closed ones.
+- [ ] If the main link of your addition points to the program's source code, there is no need to add a duplicate _Source Code_ link. The _Demo_ and _Clients_ links are not mandatory.
 - [ ] Any category you are creating has the minimum requirement of 3 items. If not, your addition may be inserted into `Misc/Other`.
 - [ ] Any software project you are adding to the list is actively maintained.

README.md

@@ -264,8 +264,7 @@ _CalDAV or CardDAV clients._
 - [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)) `AGPL-3.0/Apache` `Go`
 - [MiAOU](https://dystroy.org/miaou/login) - Multi-room persistent chat server. ([Source Code](https://github.com/Canop/miaou)) `MIT` `Nodejs`
 - [Mibew](https://mibew.org) - Mibew Messenger is an open-source live support application written in PHP and MySQL. It enables one-on-one chat assistance in real-time directly from your website. ([Demo](https://mibew.org/demo2), [Source Code](https://github.com/Mibew/mibew)) `Apache-2.0` `PHP`
-- [Mumble](http://wiki.mumble.info/wiki/Main_Page) - Low-latency, high quality voice/text chat software. ([Source Code](https://github.com/mumble-voip/mumble)) `BSD` `C++`
-  - [Mumblecop](https://bitbucket.org/Flandoo/mumblecop) - Stream audio from youtube and soundcloud, simulate dice rolls, or write your own commands with a simple plugin format. `MIT` `Ruby`
+- [Mumble](http://wiki.mumble.info/wiki/Main_Page) - Low-latency, high quality voice/text chat software. ([Source Code](https://github.com/mumble-voip/mumble), [Clients](https://wiki.mumble.info/wiki/3rd_Party_Applications)) `BSD` `C++`
 - [Niltalk](http://niltalk.com/) - Simple, private, persistence-free web based multi-room chat server + client. ([Source Code](https://github.com/knadh/niltalk)) `AGPL-3.0` `Go`
 - [Node-Chat](https://github.com/IgorAntun/node-chat) - Not-so-basic open-source chat with admin features. `MIT` `Nodejs`
 - [Pushjet](https://pushjet.io/) - Self hosted push notification service built with a simple API making sending notifications easy. ([Source Code](https://github.com/Pushjet/Pushjet-Server-Api)) `BSD-2-Clause` `Python`
@@ -828,6 +827,7 @@ See also <https://en.wikipedia.org/wiki/List_of_streaming_media_systems>, <https
 - [MistServer](http://mistserver.org/) - Streaming media server that works well in any streaming environment. ([Source Code](https://github.com/DDVTECH/mistserver)) `AGPL-3.0` `C++`
 - [ReadyMedia](http://sourceforge.net/projects/minidlna/) - Simple media server software, with the aim of being fully compliant with DLNA/UPnP-AV clients. `GPL-2.0` `C`
 - [Rygel](https://wiki.gnome.org/action/show/Projects/Rygel) - Rygel is a UPnP AV MediaServer that allows you to easily share audio, video, and pictures. Media player software may use Rygel to become a MediaRenderer that may be controlled remotely by a UPnP or DLNA Controller. `GPL-3.0` `C`
+- [üWave](http://u-wave.net/) `⚠` - üWave is a self-hosted collaborative listening platform. Users take turns playing media—songs, talks, gameplay videos, or anything else—from a variety of media sources like YouTube and SoundCloud. ([Demo](https://wlk.yt/), [Source Code](https://github.com/u-wave)) `MIT` `Nodejs`
 
 ### Audio Streaming
 
@@ -861,14 +861,14 @@ See also <https://en.wikipedia.org/wiki/List_of_streaming_media_systems>, <https
 - [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](https://emby.media/) - Home media server supporting both DLNA and DIAL (Chromecast) devices out-of-the-box. ([Source Code](https://github.com/MediaBrowser/Emby)) `GPL-2.0` `C#`
 - [Hellowlol HTPC Manager fork](https://github.com/Hellowlol/HTPC-Manager) - Fully responsive interface to manage all your favorite media on your HTPC. ([Source Code](https://github.com/styxit/HTPC-Manager)) `MIT` `Python`
-- [Icecast 2](http://www.icecast.org/) - streaming audio/video server which can be used to create an Internet radio station or a privately running jukebox and many things in between. ([Source Code](https://git.xiph.org/?p=icecast-server.git;a=summary)) `GPL-2.0` `C`
+- [Icecast 2](http://www.icecast.org/) - streaming audio/video server which can be used to create an Internet radio station or a privately running jukebox and many things in between. ([Source Code](https://git.xiph.org/?p=icecast-server.git;a=summary), [Clients](https://www.icecast.org/apps/)) `GPL-2.0` `C`
+- [MistServer](http://mistserver.org/) - Streaming media server that works well in any streaming environment. ([Source Code](https://github.com/DDVTECH/mistserver)) `AGPL-3.0` `C++`
 - [Myflix](https://github.com/pastapojken/Myflix) - Self-hosted, super lightweight Netflix alternative. `MIT` `Shell`
 - [Odd Networks](http://oddnetworks.com) - Open source video management system (VMS) and API for collections and videos with supporting SDKs for Roku, Apple iOS/tvOS, Google Android, and Amazon FireTV. ([Source Code](https://github.com/oddnetworks/oddworks)) `MIT` `Nodejs`
 - [PeerTube](https://framagit.org/chocobozzz/PeerTube) - Decentralized video streaming platform using P2P (BitTorrent) directly in the web browser. `AGPL-3.0` `Nodejs`
 - [Restreamer](https://datarhei.github.io/restreamer/) - Restreamer allows you to do h.264 real-time video streaming on your website without a streaming provider. ([Source Code](https://github.com/datarhei/restreamer)) `Apache-2.0` `Nodejs/Docker`
 - [Shinobi](https://moeiscool.github.io/Shinobi/) - Open Source CCTV software written in Node with both IP and local camera support. ([Source Code](https://github.com/moeiscool/Shinobi)) `GPL-2.0` `Nodejs`
 - [Streama](https://github.com/dularion/streama) - Self-hosted Netflix alternative. `MIT` `Java`
-- [üWave](http://u-wave.net/) `⚠` - üWave is a self-hosted collaborative listening platform. Users take turns playing media—songs, talks, gameplay videos, or anything else—from a variety of media sources like YouTube and SoundCloud. ([Demo](https://wlk.yt/), [Source Code](https://github.com/u-wave)) `MIT` `Nodejs`
 - [VideoLAN Client (VLC)](https://www.videolan.org/) - Cross-platform multimedia player client and server supporting most multimedia files as well as DVDs, Audio CDs, VCDs, and various streaming protocols. ([Source Code](https://github.com/videolan/vlc)) `Multiple` `C`
 - [Zoneminder](https://github.com/ZoneMinder/ZoneMinder) - Closed-circuit television (CCTV) software application which supports IP, USB and Analog cameras. `GPL-2.0` `PHP`
 
@@ -1026,7 +1026,9 @@ See https://github.com/n1trux/awesome-sysadmin#metric--metric-collection
 - [Dj Diabetes](https://github.com/foxmask/dj-diabetes) - My Glucose Manager - follow your daily health. `BSD` `Python`
 - [Habitica](https://habitica.com/) - Habit tracker app which treats your goals like a Role Playing Game. Previously called HabitRPG. ([Source Code](https://github.com/HabitRPG/habitrpg)) `GPL-3.0/CC-BY-NC-SA-3.0/CC-BY-SA-3.0` `Nodejs`
 - [Homepage](https://github.com/thetomester13/homepage) - Simple, standalone, self-hosted PHP page that is your window to your server and the web. `MIT` `PHP`
+- [iDashboard-PHP](https://github.com/causefx/iDashboard-PHP) - HTPC Dashboard to load website services. `MIT` `PHP`
 - [Iotdashboard](http://iotdashboard.pythonanywhere.com/en/) - Fast Django server for IOT Devices. ([Source Code](https://github.com/electrocoder/iotdashboard)) `Apache-2.0` `JavaScript`
+- [Phant](http://phant.io/) - Phant is a modular data logging tool for collecting data from the Internet of Things. ([Demo](https://data.sparkfun.com/), [Source Code](https://github.com/sparkfun/phant)) `GPL-3.0` `Nodejs`
 - [simple-dash](https://github.com/Swagielka/simple-dash) - A simple, fully responsive Dashboard to forward to the services of your choice! `MIT` `PHP`
 - [Thingsboard](https://thingsboard.io/) - Open-source IoT Platform - Device management, data collection, processing and visualization. ([Demo](https://demo.thingsboard.io/signup), [Source Code](https://github.com/thingsboard/thingsboard)) `Apache-2.0` `Java`
 - [Thingspeak](https://thingspeak.com/) - Open source “Internet of Things” application and API to store and retrieve data from things using HTTP. ([Demo](https://thingspeak.com/channels/public), [Source Code](https://github.com/iobridge/thingspeak)) `GPL-3.0` `Ruby`