Mac launchd item and launcher script, uninstaller work.

ext/installfiles/mac/launch.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+
+zthome="/Library/Application Support/ZeroTier/One"
+ztapp="/Applications/ZeroTier One.app"
+
+export PATH="/bin:/usr/bin:/sbin:/usr/sbin:$zthome"
+
+# Uninstall if the .app has been thrown away
+if [ ! -d "$ztapp" ]; then
+	if [ -e "$zthome/uninstall.sh" ]; then
+		exec "$zthome/uninstall.sh"
+		exit
+	fi
+fi
+
+# Create the app deletion notification symlink if it does
+# not already exist.
+if [ ! -L "$zthome/shutdownIfUnreadable" ]; then
+	rm -f "$zthome/shutdownIfUnreadable"
+	ln -sf "$ztapp/Contents/Info.plist" "$zthome/shutdownIfUnreadable"
+fi
+
+# Launch ZeroTier One (not as daemon... launchd monitors it)
+exec zerotier-one