I3configger

Changed

- make checks more forgiving if no i3 is installed - for testing a complete run after a PKGBUILD

Changed

- improve ipc handling - fix setting methods too late

Fixed

- use actual partials path for initialization instead of assuming that parent of config path == partials path

Changed

- shave off a few hundred precious milliseconds startup time, by moving the very expensive version fetching into a function that is only called, when the version is really needed.
- help the user, when they use a non existing command
- remove unwanted side effects from message
- when config.d already exists, but no i3configger.json exists yet, it is automatically created now
- better examples/tests

Changed

- (internal) vendor in a different inotify library that makes it easier to package for Archlinux

Changed

- always create a backup of the users files if it does not exist already. Do **not** clobber it on subsequent builds to make sure you can always go back to your old files if needed, even if they have no external backups or SCM in place.