Add trivial-backtrace dependency
Support directory pathnames in path-getter
Fix indentation
Fix condition name
Fix indentation, add note about :gen usage
Add recursive copy-directory function
Support directories in the tree-spec, copied recursively
Use an output file to retrieve results from ABL procedures
Add semi-portable environment var function
Allow non-function data items as probe values
Remove old code
Add database shutdown effect
Add st-application effect
Add temporary file and cwd functions
Add df application effect
Add message effect
Add installer-runner effect
Add installer for 4.3 database
Add 4.3 code installer
Add 4.3 combined installer