Yogit

* Add `yogit br` becomes `yogit branch` command
* Add `yogit rv` becomes `yogit review` command

* Add `yogit orga list` command
* Add `--orga` discrimator option to `yogit orga member list`
* Add `--orga` discrimator option to `yogit orga member pickone`
* Improve doc regarding auto completion

* Add `yogit orga member list` command
* Add `yogit orga member pickone` command
* Add `--dangling` option to `yogit br list`
* `yogit ct` command is renamed to `yogit contrib`
* Improve update warning wording
* Improve `yogit --version` wording

* Fix `yogit` upgrade from `1.6.0`

* Shit happens

* Add `yogit ct stats` command