Joachim Ansorg provided a number of important bug fixes and
enhancements.
- Make a pass over help docs
- Add missing info_sub files (Joachim Ansorg)
- configure.ac modernization
- Go over term highlighting
- Lint a number of files
- Support library dir with whitespace in info (Joachim Ansorg)
- Enforce English local in testing
- Support "info args" for the top-level frame (Joachim Ansorg)
- Support "info stack" improvements (Joachim Ansorg)
- Add Dbg prefix for more variables (Joachim Ansorg)
- redo how "quit" and termination work. We now note user exit versus normal program termination in "info
- Fix prompting after a subshell is exited