Fixes #30: Start using wrk instead of ab for local performance tests.
Fixes #30: Start using wrk instead of ab for local performance tests.

cesarmarinhorj/raspberry-pi-dramble,cesarmarinhorj/raspberry-pi-dramble,cesarmarinhorj/raspberry-pi-dramble,geerlingguy/raspberry-pi-dramble,geerlingguy/raspberry-pi-dramble