v2.0.0-beta.3

• [CHANGES] Use CoreOS's Prometheus Operator as the default option
• [CHANGES] Move the old deployment method to ./basic directory
• [UPDATE] Prometheus 2.0.0-beta.5
• [UPDATE] Prometheus Operator 0.13
• [UPDATE] Grafana 4.5.2
• [UPDATE] Alertmanager 0.9.1
• [UPDATE] Kube State Metrics 1.0.1
• [IMPROVEMENT] Various fixes and improvements