Forcing the playhead onto its own painting layer removes an expensive composite with the waveform. Animate using transforms instead of left prevents layouts of the rest of the page while playing a sound.

This should have happened a long time ago, but the Fastly config prevented it

Queue up messages to send ot the cloud server which accumulate before 
the connection is ready. Add tests for new/updated functionality.

Add unit tests for disconnecting from cloud when viewing a project in editor mode without the ability to save.

The functionality was all moved to the Controls container, these containers are no longer used

Expand on the backdrop integration test to make sure this is documented/tested behavior