Coppermine gallery included (#997)

* added osclass

Osclass open source included

* coppermine

coppermine photo gallery

* Update Source Code Link

* Add Demo and Description for Coppermine

README.md

@@ -904,6 +904,7 @@ See https://github.com/n1trux/awesome-sysadmin#monitoring and https://github.com
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   * [Chevereto Free](https://chevereto.com/free) - A powerful and fast image hosting script that allows you to create your very own full featured image hosting website in just minutes. ([Source Code](https://github.com/Chevereto/Chevereto-Free)) `AGPLv3` `PHP`
+  * [Coppermine](http://coppermine-gallery.net/) - Multilingual photo gallery that integrates with various bulletin boards. Includes upload approval and password protected albumns. ([Demo](http://coppermine-gallery.net/demo/cpg15x/), [Source Code](https://github.com/coppermine-gallery/cpg1.6.x)) `GPLv3` `PHP`
   * [CumulusClips](http://cumulusclips.org/) - Your own video sharing website with CumulusClips video sharing script. You can build a YouTube clone where users can upload, rate, comment on videos, and much more. ([Demo](https://tube.devosi.org/)) `GPLv2` `PHP`
   * [Gallery CSS](https://benschwarz.github.io/gallery-css/) - Gallery.css is all CSS. Think: Simple, maintainable and understandable galleries without the use of Javascript. ([Source Code](https://github.com/benschwarz/gallery-css)) `MIT` `CSS`
   * [Lychee](http://lychee.electerious.com/) - An open source grid and album based photo-management-system. ([Source Code](https://github.com/electerious/Lychee)) `MIT` `PHP`