nightwatch 2.6.16 on Node.js NPM

What's Changed

Add 'app' in REPL context. by @garg3133 in #3607
Fix #3466 Wait for queue traversal to begin before calling done() by @swrdfish in #3490
removed boxen from concurrent test runs by @qa-danny in #3616
Update logging output to use JSON instead of Logger.inspectObject by @vaibhavsingh97 in #3619
Add support for Appium locate strategies. by @garg3133 in #3620
Fixes/consider test suite settings in cucumber runner by @gravityvi in #3622
Allow multiple network mocks at the same time. by @garg3133 in #3621
Fix analytics issue by @swrdfish in #3447
api-docs: update registerBasicAuth by @tim-yao in #3623
Disable parallelism when running tests on safari browser by @prudhvi22 in #3565

Full Changelog: v2.6.15...v2.6.16