0.0.4

Make Hashie more flexible in the version term >= 3.0.0, < 4.0.0

0.0.3

• Fixed Hashie gem version (>= 3.5.6, < 4.0.0)
• Set minimal Ruby version to 2.1.0
• Added dot files: .rubocop, .editorconfig, .ruby-version etc.
• Fixed code style
• Fixed licence