GitLab

* fix typo in banners and icons urls, can't believe I didn't see this...

* use transparent icons

* added changelog, banners and icons to view details
* changed update server to [frogerme's WP Plugin Update 
Server](https://github.com/froger-me/wp-plugin-update-server)
* fixed conflict with other extensions settings pages
* fixed w4os_updater var name
* fixed view details not shown

* replaced banners png with jpg

* fix changelog, banners and icons in extension details

* revert wrong use of global variables PLUGIN_NAME and PLUGIN_SLUG

* fix: removed remaining old update checker code
* Fix $w4os_updater var name

* Fix $W4OS_updater var name

* new update server

* Fix view details not shown

* use self-hosted plugins repository

* minified css

* merge translations from 
https://git.magiiic.com/opensimulator/w4os-translations

* changed stats order
* fix some missing localizations

* added active members count

* added shortcode and dashboard widget to show last users

* fixed undefined constant 
https://github.com/GuduleLapointe/w4os/issues/1  Thanks djphil

* Translation bug was fixed, translations updates are now working with 
the
  develop branch of GitHub Updater, probably available soon in the 
stable
  release too.
* fix grid info and grid status tables

* welcome back languages/ folder, force loading with load_plugin_textdomain()
  and now it works
* found some untranslated strings
* added missing text domains in localizations

* put back languages/ folder and force loading with
load_plugin_textdomain()

* added missing domains in localizations

* since 0.9.6.1, many unsuccessful attemps to get the localizations updates with
  GitHub updater, switch back to our own gitlab server for now, but it won't
  work until a bug in GitHub Updater is fixed
  https://github.com/afragen/github-updater/issues/890