New: possibility to defined a tab for all entities in module descriptor

ChangeLog

@@ -35,6 +35,7 @@ For developers:
 - New: Function yn can show a visual checkbox.
 - New: Introduced select2 jquery plugin.
 - New: Possibility to add javascript in main login page with "getLoginPageOptions" hook
+- New: possibility to defined a tab for all entities in module descriptor
 
 WARNING: Following changes may create regression for some external modules, but was necessary to make
 Dolibarr better:

htdocs/core/modules/DolibarrModules.class.php

@@ -1000,7 +1000,18 @@ print $sql;
             $i=0;
             foreach ($this->tabs as $key => $value)
             {
-                if ($value)
+            	if (is_array($value) && count($value) == 0) continue;	// Discard empty arrays
+
+            	$entity=$conf->entity;
+            	$newvalue = $value;
+
+            	if (is_array($value))
+            	{
+            		$newvalue = $value['data'];
+            		if (isset($value['entity'])) $entity = $value['entity'];
+            	}
+
+                if ($newvalue)
                 {
                     $sql = "INSERT INTO ".MAIN_DB_PREFIX."const (";
                     $sql.= "name";