- Removed the parameter "sprache" from controller Message

- Added method escape to class DB_Model
- Changed method sendMessageVorlage of MessageLib to send messages trying
to use the same language of the receiver, and improved message errors
- Added OrganisationseinheitLib to handle a recursive search using in the
organisation tree
- Removed from PhrasesLib the method loadVorlagetext because is already
present in VorlageLib
- Changed method loadVorlagetext of VorlageLib, now it searches the template
using the organisation tree
- Added method getOneLevel to model Organisationseinheit_model to get one
level of the organisation tree

application/core/DB_Model.php

@@ -324,6 +324,18 @@ class DB_Model extends FHC_Model
 	{
 		$this->db->reset_query();
 	}
+	
+	/** ---------------------------------------------------------------
+	 * This method call the method escape from class CI_DB_driver, therefore:
+	 * this method determines the data type so that it can escape only string data.
+	 * It also automatically adds single quotes around the data so you don’t have to
+	 *
+	 * @return  void
+	 */
+	public function escape($value)
+	{
+		return $this->db->escape($value);
+	}
 
 	/** ---------------------------------------------------------------
 	 * Convert PG-Boolean to PHP-Boolean