Gitbetter

New Features

* add renaming function

New Features

* add untrack method to gitbetter shell

New Features

* add untrack() method
Refactorings

* BREAKING: Git class inherits from [`morbin.Morbin`](https://github.com/matt-manes/morbin) and all member functions previously having return type `str | int` now return a `morbin.Output` object

Refactorings

* remove redundant shell command and parser
Others

* cleanup test directory

Performance improvements

* do_ignore will commit the gitignore file after adding patterns
Refactorings

* sort class contents and remove unused import

Fixes

* fix amend() calling wrong add function