v3.1.1

• Improve errors with 2.x style @decorator (vs @decorator()) functions
• Document adding custom connectors (@simonhammes)
• Add basic API example to docs (@pirate)
• Fix sphinx warnings (@simonhammes)
• Fix force & pull arguments in git.worktree operation
• Fix server.reboot reconnection (@wackou)
• Fix chroot/local connector non-utf file gets (@evoldstad)
• Fix AptSources fact to parse components in order & with digits (@rsfzi)