Change `_ssh` to `.ssh` as the default directory for locating keys

Bump version to 0.4.0.9000

Prepare v0.4.0 release

Fix invalid commands in `staticrypt()`

Fix `config` behavior in staticrypt

Add `staticrypt()`

Refactor codebase

Add save_and_lock()

Add patch changes

Use package 'rutils' in place of 'gutils'

Fix lock recursion

Update changelog

Fix pkgdown

Fix documentation

Update package and rename it to `locker`