Use new sentry API provided by www, and use analytics ID from www

refactored font loading state to be in redux

Make remixing/saving faster by marking all assets as clean to start.

Update scratch-vm to the latest version 

Ignore projectChange updates from the VM when not in editor mode

Do not remove the window beforeunload handler in componentWillUnmount.

This is because when switching from project to editor view, this component gets unmounted and then remounted, but the componentDidMount seems to happen before the componentWillUnmount. Because it is dealing with a global variable, it is unsafe to always unset the beforeunload when unmounting.

This prevents unnecassary changes that do not matter to the player view because they were made by the project in progress (i.e. made by running the blocks, or by cloud var updates)

They were not being marked as clean when loaded from the server, causing remixes that included only minimal (or no) changes to take a very long time as it waited for hundreds of network requests to resolve. Mark them as clean when loaded from the server so we know they do not need to be resaved

Add city and bedroom assets

Update scratch-storage package

Show error ID if available from Raven and report react errors

Sprite and costume library fixes

Add a helper function to check if GUI is running in Scratch Desktop

This was intended as a safety check but it causes problems with some
tests.

Make the requiredProjectId work with the online editor

Fix "TouchEvent is not defined" error

When user uploads project file, project will auto-save before loading

Update scratch-blocks to the latest version 

Remove unnecessary console logs that occur when sending and receiving cloud messages.