Fix #23 add foodcritic lint rules
Add rubocop exclusions for foodcritic rules
Add empty CHANGELOG.md to fulfill CINK001

- foodcritic flagged missing CHANGELOG per rule #CINK001
Fix case of CHANGELOG.md extension
Update Rakefile w/style guide, foodcritic:update
Fix trailing whitespace in Rakefile
Merge pull request #24 from jhx/issue_23_add_foodcritic_lint_rules

Issue 23 add foodcritic lint rules