UPDATE YOUR CONFIG FILES! (global.conf.dist, database.conf.dist)
Made changes to support the storage of multiple database layouts in a
single course environment. Database layouts are now stored in a hash
named %dbLayouts in database.conf, and the default layout is aliased to
*dbLayout (see comments in database.conf.dist and global.conf.dist)
sql.conf and gdbm.conf are no longer used.
Support the selection of a specific database layout when instantiating
WeBWorK::DB. WeBWorK::DB now takes a reference to a database layout
rather than an entire course environment.
All calls to WeBWorK::DB::new were updated to pass the correct argument.