Log Message:
Update ruby-capybara to 2.14.2.

* pkgsrc chagnge: depends on ruby-rack14 instead of ruby-rack16.

# Version 2.14.2

Release date: 2017-06-09

### Fixed

* Workaround for system modals when using headless Chrome now works if the
  page changes

# Version 2.14.1

Release date: 2017-06-07

### Fixed

* Catch correct error when unexpected system modals are discovered in latest
  selenium [Thomas Walpole]
* Update default `puma` server registration to encourage it to run in single
  mode [Thomas Walpole]
* Suppress invalid element errors raised while lazily evaluating the results
  of `all` [Thomas Walpole]
* Added missing `with_selected` option to the :select selector to match
  `options`/`with_options` options - Issue #1865 [Bartosz Nowak]
* Workaround broken system modals when using selenium with headless Chrome