chore(e2e): update protractor to 1.0.0-rc4

[juliemr]

This change contains a stability improvement to use data URLs instead of
about:blank for resetting the URL.

[mary-poppins]

Thanks for the PR! Please check the items below to help us merge this faster. See the contributing docs for more information.

• Uses the issue template (#8111)

If you need to make changes to your pull request, you can update the commit with git commit --amend.
Then, update the pull request with git push -f.

Thanks again for your help!

[juliemr]

Investigating safari errors.

[juliemr]

SafariDriver doesn't allow executing webdriver commands on the data url: angular/protractor#1049

[juliemr]

Everything is now passing and ready to go - https://travis-ci.org/angular/angular.js/builds/29457532

[btford]

LGTM

[IgorMinar]

lgtm

[juliemr]

Thanks! Merged to 1.2.x as 05597c2 and master as 88a3257