- avoid using the "last resort, use lazy umount" by killing tee_pid _and descendants_ before hand. Works!
- introduce `get_descendants_of_pid_array()` using recursive trick to get all descendants
- do not `unset CURRENT_LOGFILE` -- during `logging_error_show_log()` (from SHOW_LOG=no days)
- do `unset CURRENT_LOGFILE` immediately before processing logs -- although it magically survives. mysteries of traps in bash...
- `declare -g` instead of `export` for `start_logging_section()`
- don't `check_and_close_fd_13()` in `run_cleanup_handlers()`
- do run `check_and_close_fd_13()`, but only after archiving the old logs (in logging trap!)
- add a default error for unhandled TRAP's -- of which should be done
- fix reset of `global_tee_pid=0` in section-logging
- check and make sure the fd is closed before processing and/or deleting logs.
- change from fd 3 to 13, for extra "this is evil". is it? is 13 an evil number? you decide.
- default `SHOW_LOG=yes` if user on terminal
- shortcut: `DEBUG=yes` defaults both `SHOW_LOG=yes` & `SHOW_DEBUG=yes`
- much simpler logging format for log file
- skip all display_alert()'s more verbose than DEBUG from logfile
- set `DEBUG=yes` to log everything again
- skip Markdown assets from being included in ANSI log
- use of `ccze`
- introduce internal var for controlling COMMAND-level log
- remove unused `run_on_sdcard()` that somehow was left there
- drop `export_html_logs()` and `EXPORT_HTML_LOG` -- are no more
