Baseline are overwritten when using screenWidth

[amitaibu]

I am running these test with PROVIDER_PREFIX=browserstack SELECTED_CAPS=chrome mocha - which runs it against Chrome on BrowserStack.

The result of the 2nd run is that the baseline are changing.

This seems to be working fine with phantomjs

[amitaibu]

@christian-bromann if you want I can add you to my BrowserStack account so you can reproduce it as-well.

[amitaibu]

I believe it might be related to the change being below to allowed tolerance. Closing for now, sorry about the noise.

[amitaibu]

Re-opening as I was able to reproduce this with big changes. Baseline shouldn't be overwritten if it already exists.

[amitaibu]

@christian-bromann you can see here and example of the diff. it's shown as exact match, but using the diff you can see there's some movement there. Any idea?

[amitaibu]

Closing in favor of #101