Protege 3.0 Beta update (build 60)

There's a new beta build available on our Web site:

http://protege.stanford.edu/download/prerelease/full/
http://protege.stanford.edu/download/prerelease/basic/

Changes
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1. Fixed a performance problem with the multi-user system. The load times 
of large database projects should be much better now.

2. The default (CLIPS) back-end now supports instances having multiple types.

3. The classes tree right-mouse menu now works better with multiple selections.

4. The icons for all objects/actions are now consistently colored.

5. The icons for included frames now consistently show up as faded.

6. The icons for inherited/overridden slots now show up correctly in all cases.

7. The template slots widget has been reworked a bit and now shows tooltips 
on inherited and overridden slots.

8. Fixed some look-and-feel changing problems.

9. Removed special processing of the metal look-and-feel.

10. Copying of classes and slots is now disabled (since it didn't work anyway).

11. Reset labeled component "header component" position to 
BorderLayout.CENTER rather than SOUTH.

12. Fixed a bug in the Remote KB Tab that was causing exceptions in the 
UMLS Tab.

13. Modified the UMLS Tab to use the latest version of the NLM's API for 
accessing the UMLSKS (which fixed a couple of bugs that were causing 
exceptions).