firefox doesn't like comma (,) in svg path, so I change comma to space

/ht @paulkaplan

Previously we tested the ProjectLoader helper object, but now all loading is confined to storage. Unfortunately I wasn't able to get enzyme to wait for the storage promise to resolve within componentDidUpdate, so I can't test the actual results of storage.load, just what it was called with.

Add a setup file that configures the React adapter. Fix one deprecated usage for ProjectLoaderHOC tests.

There are some tests still broken, but these weren't called out by Enzyme.

Adding `import 'chromedriver';` causes the module to register the path
to `chromedriver` / `chromedriver.exe` automatically, fixing this error:
```
The ChromeDriver could not be found on the current PATH. Please download the latest version of the ChromeDriver from http://chromedriver.storage.googleapis.com/index.html and ensure it can be found on your PATH.
        at Error (native)
```

This should fix the integration test failures on the extensions branch.
Thanks @paulkaplan for figuring this out!