Suppress hostname command not found error
Log less things if not in debug mode
Fix bug when auto override triggers
If a profile is not specified and auto override take place,
then, after the linking, the processing of deleted links was triggered
without an argument, so it was deleting the override links.
Add auto override
here is the priority order:
cli argument goes first
then it checks for DFL_OVERRIDE env var
at last it checks for hostname
Minor clarification in docs
Process secrets after everithing else
Document the take feature
Changes due to ~/.dfl location
Add self update capability
Handle missing default/secret dirs in untracking