Something has been up with @digitalocean instances that was requiring
some additional human interaction. Tweaked the upgrade command to work
around that.
Added some additional pieces of information and moved the speed test to
use JSON output instead of text for easier parsing.
No longer testing on old Ubuntu versions, so dropped the sanity checks
around that. Added some additional `sysbench` tests, improved the speed
tests and did some naming clean up.
Running `ab` on the server connecting to itself was never a good metric. Command
broke when switching from Apache to Nginx so there's no real need for it
Fixes the issue where the install for MySQL gets locked up because it's
expecting input on the password. Benchmarks are using empty passwords so this is
fine
