test run successfully now with Chef 11.4.0
Merge pull request #15 from mmarschall/COOK-2743

[COOK-2743] tests run successfully now with Chef 11.4.0
[COOK-2914] Fix foodcritic warnings

Update notification sytnax and whitespace.
Merge pull request #19 from opscode-cookbooks/ssd/COOK-2914

[COOK-2914] Fix foodcritic failures
update testing doc for test kitchen use
add test kitchen (1.0, alpha) support