Version 2.2.0

• Add command alias display to scaffold package-readme output [#265]
• Fix Gherkin lint issues [#255]
• Fix code coverage collection test [#253]
• Regenerate README file [#252]
• Remove Travis CI config [#251]
• Add code coverage shield if applicable [#250]
• Regenerate README file [#249]
• Require wp-cli/wp-cli v2.12 [#248]
• Allow manually dispatching tests & disable composer lock file [#247]