Bundle I18n translations with Webpack

Vendor i18n.js script provided by fnando/i18n-js.

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Add gulp-protractor, gulp tasks for Protractor

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Remove login steps from Protractor spec

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Remove seleniumAddress from Protractor config

This should ensure Protractor spins up its own bundled Selenium
server.

Signed-off-by: Alex Coles <alex@alexbcoles.com>
Fix expected wp columns in example e2e spec

Signed-off-by: Alex Coles <alex@alexbcoles.com>