I3configger

Fixed

* broken changelog

Fixed

* crash when executing command due to forgotten explicit self

Added

* where it makes sense, defaults for command line settings can be changed in i3configger.json (command line overrides settings in config)
* make status command configurable (for refresh)
* off-switch for ipc configuration (for easier testing)
* functional tests for main cli functionality

Changed

* keep Python version in sync with Arch system Python: test with Python 3.7
* breaking changes in i3configger.json - check examples to see what is different. Easiest way to upgrade is to move your old config to the side, run i3configger to generate a new default config and add your settings from the old config back in.
* terminology: i3status -> i3bar
* terminology: value -> select
* internal modernization and refactoring

Fixed

* wrong use of reversed in select-next/previous

Removed

* option for different config has no real use and unnecessarily complicates things

Changed

* Name for i3bar key is fixed to `i3bar` - no need to be configurable

Fixed
* don't crash if no i3bar config file was yet generated
* terminology i3status -> i3bar

Added

- resolve variables with as many levels of indirections as you want
- if resolving fails proper feedback about the failing path is given
- better error handling/notification, when config is broken
- tests for resolving contexts

Fixed

- watch process does not crash anymore but gives proper feedback
- don't crash if switching without a default in .messages.json

Changed

- do not add partial into config if it purely contains set statements
- strip empty lines from beginning and end of partials