irc/znc: Update to 1.7.2
- Add NLS option Since version v1.7.0, ZNC UI has translations for different languages.
- Switch to CMake CMake build was added since version v1.7.0, and the ZNC UI translation is built and installed just through CMake.
Autoconf will be removed from ZNC in the future and CMake will be the only build option.
- Set PYTHON option as default Now that znc-buildmod requires Python when CMake is used (as a runtime dependency).
Changelog: https://wiki.znc.in/ChangeLog/1.7.2