* actions on plugins are down in AJAX (no more page reload)
* plugins can be filtered but plugins do not move from a section (active) to another (inactive)
* in addition to "tile" view introduced in Piwigo 11, we add "compact" and "lines" views
* implemented by @MatthieuLP as cat_list_new in a custom branch, manually merged by @plegall on master
height changes when selecting a user to add to a group caused by the fact that padding is only added when input is not full
now height is stable even when selecting
moved the confirm deletion msg on the actions delete and delete_derivatives so it will be in the middle of select and apply action with visibility hidden
* use datatables.ajax instead of datatables.ajaxsource. The request parameters have changed, the backend has been updated accordingly
* the "select all" users is replaced by "select page" + "select whole set". The selection only applies to filtered list. If you filter on a group, for example, the "select whole set" will only select users of this group.
* plugins: install, restore, deactivate all, uninstall, delete
* themes: delete
* languages: delete
* maintenance: lock gallery, purge history detail, purge history summary, purge search history and delete all sizes butto
* rates: delete user rates
* sites: remove a site
* updates: update all extensions
* users: delete
batch manager now confirms deletion of derivative like deletion of photos (no more alert popin)
theme manager: box styling like plugins, delete is in dropdown, with icon for activate and delete
easier exit out of the group list window via escp or right click outside, also added clearer message of whichi user is added when adding a user inside a group
In album edit page, the actions had every word capitalized, so I removed text-transform:capitalize from theme.css, then added translation for french and UK but with Capitlalized actions names who where modified in cat_modify template
better skeleton template which starting at 2 divs adds more until there is a scrollbar then removes one to have as much <div> as possible in the skeleton template
