v0.5.0

• Update dependencies.
• Do not descend into directories starting with a dot. Having /etc/pullconfd/conf.d as a git repository worked before, but this avoids some pointless file searching within .git or other dotted directories.
• Let pullconf return non-zero exit code when at least one resource fails.
• Let pullconfd shut down gracefully when configuration parsing fails after a systemctl reload and return a non-zero exit code.
• Add additional JSON log for pullconf.
• Extend documentation with sections on logging and monitoring.