* New variable from main.yaml: MKDIR_CMD to be able to call from index and mkdir command defined by instl. In this case on Mac MKDIR_CMD expands to mkdir_with_owner.
* Copy now calls mkdir_with_owner on Mac so to properly set owner and permissions for created folders.
* Copy scripts on Mac get a function mkdir_with_owner so to properly set owner and permissions for created folders.
* new method PlatformSpecificHelperBase.mkdir_with_owner defaults to PlatformSpecificHelperBase.mkdir, implemented on Mac to call locally defined mkdir_with_owner.
* new initial vars defined in main: __USRER_ID__, __GROUP_ID__ record the user and group when instl was called. Useful for usaing in the produced script, when called as sudo, to set permissions to the original owner.
uaser and group variables only for windows
mkdir with permissions