Log Message:
Update to 0.4.0:

Vala 0.4.0
==========

 * Support more flexible constructors.
 * Partial support for reading and writing .gir files.
 * Improve compiler performance.
 * Copy arrays where necessary.
 * Basic support for static properties.
 * Partial support for struct holding object references.
 * Add tracker indexer bindings (Roberto Majadas)
 * Updates to the GLib, GTK+, and GStreamer bindings.
 * Many bug fixes.