Added .DS_Store files to gitignore
Updated selenium standalone server jar
Updated chromedriver and phantomjs
Updated dotfiles
Updated a the jar reference
Side-stepping quality checks for now -- too many to sort out today. Will revisit next go-round
Bumped version to 3.7.1 to prepare for release.
Updated CHANGELOG.md gemspec and readme heading for 3.7.1 release.
Merge branch 'release/3.7.1' into develop