CHANGELOG

2.0.0
    - Use [selenium-download](https://github.com/groupon/selenium-download) to manage downloading of Selenium server and Chromedriver. 
    - BREAKING CHANGES
      - This requires node 4+ and Chrome 54 or higher.
1.7.0
    - Introduces 'waitForContextsReady' command.
1.6.3
    - Fixes a bug in `waitForAjaxCompleted` in cases where `$` is not bound to jQuery.
1.6.2
    - Update `preview` command to accept `site.js` files under `/system/site.js`
1.6.1
    - Update seleniumVersion to 2.52.0
    - Update chromeDriver version to 2.21
    - Update README to include use section
1.6.0
    - Update `preview` command to accept an optional `site.js`.
    - README now contains the latest documentation
1.5.0
    - Follow company practices for tools and gitflow
    - Have CircleCI lint our source code (TODO: tests to be fixed later)
    - Update JS linting to current standards (grunt-eslint ^17.0.0 & mobify-code-style ^2.3.6)
    - Fine tune linting targets to capture as much source code as feasible
    - Introduces the command `waitForUrlToContain`
1.4.0
    - Introduces the command `waitForUrl`
1.3.2
    - Fixes a bug introduced in 1.3.1 with the refactoring of the preview command. The bug affected tests that used a key other than before/beforeEach to refer to the set up steps of a test, and in which preview was called more than once.
1.3.1
    - Make site.json optional
1.3.0
    - Update Selenium and Chrome Drivers (2.48.2 & 2.20)
1.2.0
    - htmlCapture command to get/update fixtures
1.1.1
    - Downgrade Chromedriver to 2.12
1.1.0
    - Bumps Selenium server to 2.45
    - Bumps Chromedriver to 2.15
1.0.0
    - Reformatting and initial v1 release