Added two new options:
-Purge: removes all existing *.sql script files in the folders. This is useful when scripting for importing into version control.
-ScriptAllDatabases: scripts all databases on the current server regardless of the connection string. "Initial Catalog" is not required in the connection string when this option is used.
Marking as "beta" for a while, pending positive feedback that it works for others. I've had it running on both dev and production servers since August.