Delete the sudoers file configuration, using templates.

This commit refs #143.
Add dependency on sudo recipe.

This commit refs/fixes #143
Delete the sudo cookbook.

The sudo cookbook's behaviour is unpredictable,
so instead of using it, do the sudoers configuration myself.

This commit refs/fixes #143
Make sure that the /etc/sudoers.d/ directory is made.

This commit refs #143
Make sure that the kazu634 can execute sudo command.

This commit fixes #143
Merge branch 'id/143' into dev