* Add test for the unsupported browser screen
Test a handful of APIs that are easy to disable with an init script
and assert that the app display the "Unsupported Browser" screen.
* Oops, test wasn't actually testing anything
* Remove other feature tests
They didn't work because there are two separate screens, one of
which has an iframe and one of which doesn't.
* Add screenshot test
* Rename to ts
* Fix screenshot
* Fix snapshot filename
* Rename file
* rename screenshot again
* rename screenshot again
* 16th time's a charm
* remove file
* please just be in the right place
