Cleanup of deprecation warnings and spurious change notifications (#6)

* Fixed 'bare variable' warnings.

* Disabled 'changed' status for several shell commands.  These commands either do not make changes or are not interesting unless they fail.

* Adding another space in front of the email address prevents the template function from periodically trying to remove an extra space.

Bump version: 1.0.0 → 1.1.0

Bump version: 0.0.0 → 1.0.0