Add HA mode with SQL datastore and tune log messages

Support is added for k3s in HA mode using SQL

You will also find a new tutorial: Create a multi-master (HA) setup with external SQL on DigitalOcean - it uses managed mysql and a managed TCP LoadBalancer.

Support k3sup, checkout the SWAG store and Insiders Program

Changelog for 0.9.6:

• PR #261 Add HA datastore support with SQL by @alexellis
• PR #260 Tune verbosity of install/join commands by @alexellis

Commits
b94b83b Add datastore support for HA k3s by @alexellis
ff2a5bd Update README for print command flag by @alexellis
2600577 Tune-down verbosity by @alexellis
7c4f752 Add SWAG photo by @alexellis
3915eb8 Update README.md by @alexellis
267fa16 Add MrUPGrade's post by @alexellis
1af980e Update README.md by @alexellis
ff49d01 Add community posts by @alexellis
a9ba262 Add logo to README by @alexellis

Generated by Derek