SMW 0.2b

From the RELEASE-NOTES
Changes by mak (0.2b, Jan 2006):
 * Changed directory structure for more clarity, easier installation and upgrade.
 * Now using custom namespaces for Relations, Attributes, and Types, and their talks.
 * Semantic features can be switched on or off for each namespace individually.
 * Registered extension for MediaWiki's "Special:Version".
 * BUGFIX: Configuration now takes fixed servername to use in storing URIs. Before, different access methods (e.g. direct IP vs. servername) generated different URIs.
 * BUGFIX: Attributes that could not be parsed now do not generate triples with empty object in our database.