Added checks for admin permissions to settings / users.

Added welcome message and start page contents in input interface (iss0000160).

edit/translations/en.php

@@ -18,6 +18,12 @@ $translations = [
     "delete" => "Delete",
     "general" => "General Settings",
     "security" => "Security",
+    "aboutThisSite" => "About this page",
+    "numberOfPages" => "Number of pages (overall)",
+    "numberOfPublicPages" => "Number of pages (public)",
+    "phpVersion" => "PHP Version",
+    "aboutMDCMS" => "About md:cms",
+    "aboutMDCMS_content" => "<p>md:cms is a content management system for museum-related websites. It offers many functions for embedding contents from museum-digital. The only requirements are a web server running PHP7 and SSL encryption for the domain.</p>",
     "integrationWithMD" => "Integration with Museum-Digital",
     "languageUnavailable" => "This language is not available.",
     "settingsUpdated" => "Updated settings.",
@@ -93,9 +99,10 @@ $translations = [
     "helpfooter" => "<p>On this page, you can edit the footer. To not display a footer, simply empty this page.</p>",
     "banner" => "Banner",
     "helpbanner" => "<p>On this page, you can edit the banner.</p>",
-
     "aside" => "Sidebar",
     "helpaside" => "<p>On this page, you can edit the sidebar. To not display a sidebar at all, simply empty this page.</p>",
+    "welcomeMsg" => "Welcome Message",
+    "helpwelcomeMsg" => "<p>On this page, you can edit the welcome message appearing on the start page of the input interface (what people see, when they log in).</p>",
 
     "urlAbbr" => "<abbr title=\"Uniform Resource Locator\">URL</abbr>",
     "url" => "URL",