* Data files (currently inst_help.yaml) can be accessed from instl when it's compiled. Using the new function get_data_folder()
* Removed unused functions do_create_readlinks & do_resolve_readlinks as they are now incorporated into fix_symlinks.
* Read/Write of info files can handle checksum field for files. All formats info/text/yaml
* fixed: --run option was required for trans command, although run is not relevant for this command.