Some additions and fixes (#669)

* add moped

* add mopidy-party and mopidy musicbox

* contributing: add note about alphabetical order

* add ympd

* makefile: add listlicenses target
lists all license fields in README.md

* misc license/format fixes
 * license *before* language
 * simplify licenses version numbers
 * remove 20euros (no license)
 * move gazelle to non-free (non commercial restriction https://github.com/WhatCD/Gazelle/blob/master/docs/COPYING.txt)

* license fixes, remove gaskit
(no activity  ~4 years https://github.com/bkeepers/gaskit/branches)

* license fixes, remove webalizer
(unmaintained, last modification date in source .tgz is 2013)

* makefile: add longdescriptions target
finds all descriptions longer than 250 characters

* makefile: only search for licenses and long descriptions between actual list beginning/end

* makefile: add syntaxerrors target (currently detects weird pairings like )(, `` )
add more tests to main makefile target

* makefile: fail if invalid content is found

* re-add untrusted to non-free.md (non-commercial license)

Makefile

@@ -2,20 +2,32 @@
 SHELL = /bin/bash
 all: checks
 
-checks: missinglicenselanguage nofullstop
+checks: nolicenselanguage nofullstop longdescriptions syntaxerrors
 
 noexternallink:
-	@echo "Lines with no source/demo/other link:"
+	@echo -e "\nLines with no source/demo/other link:"
 	@sed -n -e '/BEGIN SOFTWARE LIST/,/END SOFTWARE LIST/ p' README.md | egrep '^ *\* ' | egrep --color=always '[a-z\.] `'
 
-missinglicenselanguage:
-	@echo "Lines with only 1 or no language/license entry:"
-	@sed -n -e '/BEGIN SOFTWARE LIST/,/END SOFTWARE LIST/ p' README.md | egrep '^ *\* ' | egrep -v '` `'
+nolicenselanguage:
+	@echo -e "\nLines with only 1 or no language/license entry:"
+	@! sed -n -e '/BEGIN SOFTWARE LIST/,/END SOFTWARE LIST/ p' README.md | egrep '^ *\* ' | egrep -v '` `'
 
 nofullstop:
-	@echo "Lines without a full stop after description:"
-	-@sed -n -e '/BEGIN SOFTWARE LIST/,/END SOFTWARE LIST/ p' README.md | egrep '[a-z] \(\['
-	-@sed -n -e '/BEGIN SOFTWARE LIST/,/END SOFTWARE LIST/ p' README.md | egrep '[a-z] `'
+	@echo -e "\nLines without a full stop after description:"
+	@! sed -n -e '/BEGIN SOFTWARE LIST/,/END SOFTWARE LIST/ p' README.md | egrep '[a-z] \(\['
+	@! sed -n -e '/BEGIN SOFTWARE LIST/,/END SOFTWARE LIST/ p' README.md | egrep '[a-z] `'
+
+longdescriptions:
+	@echo -e "\nDescriptions exceeding 250 chars:"
+	@! sed -n -e '/BEGIN SOFTWARE LIST/,/END SOFTWARE LIST/ p' README.md | egrep --only-matching '\) - [Aa-Zz|.|\(|\)|/| |,|-]*\s\(\[' README.md | grep  '.\{257\}'
+
+listlicenses:
+	@echo -e "\nList of licenses:"
+	@sed -n -e '/BEGIN SOFTWARE LIST/,/END SOFTWARE LIST/ p' README.md | egrep --only-matching '([Aa0-Zz9]|\s|\.|-)*` `' README.md | sort --unique
+
+syntaxerrors:
+	@echo -e "\n Syntax errors:" 
+	@! sed -n -e '/BEGIN SOFTWARE LIST/,/END SOFTWARE LIST/ p' README.md | egrep  '\)\(|``'
 
 contrib:
 	@git shortlog -sne

non-free.md

@@ -8,6 +8,11 @@
   * [Mint](http://haveamint.com/) `⊘ Proprietary` - Extensible self-hosted web analytics, license costs $30 per site. ([Demo](http://mimeoverse.com/mint/)) `PHP`
 
 
+## Content Management Systems (CMS)
+
+  * [Gazelle](https://github.com/WhatCD/Gazelle) - Gazelle is a web framework geared towards private BitTorrent trackers. Although naturally focusing on music, it can be modified for most needs. `unlicensed` `PHP`
+
+
 ## Communication Systems
 
   * [HipChat](https://www.atlassian.com/software/hipchat) `⊘ Proprietary` - A team chat solution with 1:1 chat audio and video, third party integration and more `PHP/Python`
@@ -32,6 +37,11 @@
   * [Drive Virtual](http://www.drivevirtual.com/) `⊘ Proprietary` - With Drive Virtual you can sync, backup and share your files privately with your own FTP (SFTP) server or account.
 
 
+## Games
+
+  * [untrusted](https://github.com/AlexNisnevich/untrusted) - Untrusted is a unique puzzle game designed for geeks and developers, where you solve the puzzles in the game by reading and writing Javascript. ([Demo](http://alex.nisnevich.com/untrusted/)) `CCBYNCSAv3/Custom` `Nodejs`
+
+
 ## Media Streaming
 
   * [Plex](https://plex.tv/) `⊘ Proprietary` - Plex is a centralized home media playback system with a powerful central server.