Added license and notice files to archives

[Dain Sundstrom]

I just finished OPENEJB-323 to add LICENSE.txt and NOTICE.txt files  
to all jar, zip and tar.gz archives in openejb2 and openejb3.  Are  
there any other archive types we ship?

Also do we need to put some sort of incubator notice in these files?
BTW when adding new modules, make sure that there is a LICENSE.txt  
and NOTICE.txt files in the root director of the module.  The files  
must end with .txt so that maven will automatically add them to the  
META-INF dir or the jar.

-dain