Install batch.sh from ap_scripts if not detected

[mateor]

Maybe a little late for this, but we don't ship batch.sh in the download packages from techerrata. Maybe the script should test for batch.sh and install it if not present. It is a useful tool and not included at all in the download package. Pretty much requiring people to get it from git if they want to meddle or troubleshoot.

Like I said, probably a little late in the game as almost everyone will have it with git now, But an idea