Log Message:
Update to 2.0.1. From the changelog:

- Switch to golang.org/x/time/rate
- Print the notes when displaying a firewall rule
- Add optional --notes to the firewall rule creation
- Add warning note to server upgrade-plan change command
- Add support for virtual machine plan changes
- Add get_app_info
- Fix travis-ci golang versions
- Update to golang 1.10
- Expose the main interface MAC via server ipv4 list
- Add error tests, changes for nil return
- Fix common on exported type BackupScheduleResponse
- Fixes for backup unit tests
- Add Test_Servers_BackupSetSchedule_OK
- Add Test_Servers_BackupGetSchedule_OK
- Add BackupGetSchedule, BackupSetSchedule
- Add serversBackupGetSchedule, serversBackupSetSchedule
- Remove backupschedule struct, change return type of GetBackups
- Add backup/list, server/backup/(get,set)
- Add commands_backup.go
- Post request and []Backup
- Add backup_test.go file
- Add backup.go file
- Don't disable SSH host key checking
- Lib: update snapshot resource
- Lib: add new network resource
- Feat(*): support restore from backup/snapshot
- Api: add initial bare metal support