White area in status bar / iOS 11

[eb1]

Adapt It Mobile Version: 1.0 beta 8
Operating System: iOS
OS Version: 11
Severity: 3 - it's just ugly, and takes a few pixels from the top of the screen
Description: I've been noticing on recent builds that a white bar is appearing on the top of the screen, where the status bar is. We've attacked this particular issue before, but it looks like iOS has changed the way they render things again:

https://issues.apache.org/jira/browse/CB-12886

The link above also provides a fix for this issue -- adding a "viewport-fit=cover" parameter to the viewport <meta> tag in the index.html file.

Steps to Reproduce:

1. Launch AIM on an iOS device. Notice the white area in the status bar, and that our UI is slightly moved down (~20 px).