Merge pull request #9 from stefansedich/master

Update README.md
Added code to uninstall tentacle on stop
Install the latest tentacle version
Removed left over OctopusDeploy tentacle registry key that causes it to not reinstall
Bumping minor version
Merge pull request #10 from MRCollective/uninstall-and-latest-tentacle

Tentacle uninstall in OnStop and get the latest Tentacle installer