Add unit suffix to TTL settings to avoid issue #20099
Release 1.2.1 - changlog and Modulefile

Signed-off-by: Ken Barber <ken@bob.sh>
Merge pull request #45 from domcleal/ttl-units

Add unit suffix to TTL settings to avoid issue #20099
Merge pull request #47 from kbarber/ticket/master/release_121

Release 1.2.1 - changlog and Modulefile
allows for 0 _ttl's without time signifier and enables tests
Cleaned up ghoneycutt's code a tad

Signed-off-by: Ken Barber <ken@bob.sh>
Merge branch 'ttl_checking'

* ttl_checking:
  Cleaned up ghoneycutt's code a tad
  allows for 0 _ttl's without time signifier and enables tests