Version 1.2

Changed

• Formatting changes
• PSR-2 code style compliance

Fixed

• HtmlHelper evaluates body tags correctly (thanks @Schlaefer)
• Removed composer.lock from Git
• Removed IDE files (.idea) and replaced it with .editorconfig

Added

• Added CONTRIBUTING.md, CODE_OF_CONDUCT.md, and PULL_REQUEST_TEMPLATE.md to make contributing easier
• Added tests for PHP5.5, 5.6, 7.0, 7.1, and 7.2