COOK-3021 Proper resource update
Merge pull request #204 from tas50/COOK-3777

[COOK-3777] Install NRPE 2.15 when installing from source
Merge pull request #169 from kamaradclimber/master

[COOK-3021] Proper signaling of updated resources
fixingup to pass rubocop
Version bump to v5.0.2
Version bump to v5.0.3
Add chef-zero to test kitchen, load data bags from test folder, reduce
memory to 512 on the test clients