These were causing the tests to fail and should be fixed by the update to FindByXpath function.

Including sprites, backdrops, costumes and sounds inputs

I needed to update the player css because the editor side wasn't large enough to be useable.

Update project changes test to test a project change that should actually emit a change event. Clicking on blocks should not emit a project changed event.

I know we will want to change this eventually, so I added comments about that. But the next commit originally contained an inadvertent change to this functionality, so I wanted to add an integration test so that when we do change it, we

It looks like an "test.only" was left in on one of these tests by mistake.