Add Clozure CL support
Use java db admin tool to stop database
Evaluate effect args when creating an applicator
Make results-reading optional when running abl procedures
Add file-copying callback
Add effect to restart stopped dbs
Add installer-local and toplevel exits
Add handler for database shutdown errors
Create logfiles if they don't already exist
Move copying messages to code installer, reverse db/code installer order
Signal sub-installers that they're children
Clarify the role of the KEY argument
Return a pathname rather than string
Add prompts to ensure correct db installer usage

Prompt to ensure that the installer is running on a machine hosting the db, and that the database has been backed up.
Print a progress dot for every 5 copied files
Shut down and restart the database in the db installer
Print a status message iff restarting the database
Add a successful completion message
Pause before closing
Remove debug messages