add tool to help Windows Home users nuke their installation if need to start from scratch

Author: evbauer

utils/uninstall_win_home.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+OPTIND=1         # Reset in case getopts has been used previously in the shell.
+
+# default drive letter:
+install_drive=C
+
+while getopts "d:" opt; do
+    case "$opt" in
+	d)  install_drive=$OPTARG
+	    ;;
+    esac
+done
+shift $((OPTIND-1)) # In case I add other stuff later...
+
+export MACHINE_STORAGE_PATH=${install_drive}:\\docker
+echo $MACHINE_STORAGE_PATH
+
+docker-machine ls
+docker-machine rm mesa-machine