Bump database schema to 24

src/java/org/jivesoftware/database/SchemaManager.java

@@ -68,7 +68,7 @@ public class SchemaManager {
     /**
      * Current Openfire database schema version.
      */
-    private static final int DATABASE_VERSION = 23;
+    private static final int DATABASE_VERSION = 24;
 
     /**
      * Checks the Openfire database schema to ensure that it's installed and up to date.
@@ -418,4 +418,4 @@ public class SchemaManager {
         return !(line.startsWith("//") || line.startsWith("--") || line.startsWith("#") ||
                 line.startsWith("REM") || line.startsWith("/*") || line.startsWith("*"));
     }
-}
\ No newline at end of file
+}