v3.8

Changelog:

• Added support for Kerberos ticket files (ccache and kirbi formats) with -K parameter, including automatic format detection/conversion and optional reverse DNS lookup for FQDN
• Added persistent command history per user/host (stored in ~/.evil-winrm/history/)
• Fixed autocomplete logic for upload/download commands and improved relative path handling with file validation
• Added clear/cls commands and Ctrl+L support for clearing screen
• Updated logo
• Fixed minor problem in Dockerfile, updated to new alpine version
• Added dependency to Dockerfile to make Kerberos to work (thanks ArchiMoebius)
• Added dependencies to Dockerfile and gemspec file to make it compatible with newer Ruby versions
• Fix error using Kerberos and SSL at the same time (thanks birk0)