Fixed foodcritic issues after Chef 13 release

[bbaugher]

Test Kitchen Evidence: https://gist.github.com/bbaugher/02e752e721853ef342c57c4c2287c7d4

We were originally breaking these 4 rules,

• http://www.foodcritic.io/#FC066 - Ensure chef_version is set (new in Chef 13)
• http://www.foodcritic.io/#FC069 - Not standardized license
• http://www.foodcritic.io/#FC071 - Missing License file
• http://www.foodcritic.io/#FC078 - License not OSI approved

We are using Apache 2.0 license so just had to tweak our metadata. Additionally foodcritic couldn't seem to find our License.txt file and insisted it be License

[bbaugher]

Merging this to fix builds