v0.55

• In case of error it's more verbose now: added first error line (returned by backend)
• Adding option -d for debugging
• Some other small fixes

v0.51

Version 0.51 (22.10.2020):
* Used snmpwalk(1) as a backend
* Show general info about:
- Uptime
- CPU arch
- Hostname
- Contact
- Kernel version
- File Systems (free space usage)
- Network interfaces
- List of running processes
* Checks for:
- SWAP usage
- RAM usage
- Number of running processes
- CPU load average
- Traffic for specific NIC