This release also fixes:
- #38 : removing the --disable-agent option. Please use node taints.
- #39 : clarified where jmespath should be installed in README.md
1. Now does not remove prerequisite packages, lvm2 was included in
these packages (not good when you use LVM2 for real).
2. Added a bit more idempotency to the shell scripts - only delete if
it exists.
3. Check that the process isn't running and binaries are gone.