Upgrade notes for Bweb

Upgrade from 2.2.Y to 3.0
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 - Add the Date::Calc package to your perl library
 - Add user, new job overview and bresto tables to your catalog

   mysql) 
	load the bweb/script/upgrade-2.2_3.0_mysql.sql file
   postgresql)
        load the bweb/script/upgrade-2.2_3.0_postgresql.sql file

Upgrade from 2.0.X to 2.2.Y
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 - Add group tables to your catalog
   mysql) 
	load the bweb-mysql.sql file
   postgresql)
        load the bweb/script/upgrade-2.0_2.2_postgresql.sql