v2.0.0

• Breaking change: Convert the metrics name into lower case (#13)
• Update base Docker image and reduce image size. Resolves #17 (#31)
• Publish Docker images for ARM architecture. Resolves #19 (#34)
• Make refresh interval configurable. Revolves #24 (#29)
• Make exporter port and address configurable via environment variable (#27)
• Include zero value raw metrics (#15)
• Return more information on smartctl error. Resolves #23 (#28)
• Handle error when devices are not detected (#32)
• Using SMART tool to get the devices instead of glob (#14)
• Avoid Python stdout buffering (#33)
• Add Grafana dashboard. Resolves #18 (#30)
• Added gitignore (#12)