Pin eslint-plugin-react because v7.12 has a bug causing erroneous fails

Change WebGL link

Use the loading screen in player mode

Update scratch-vm to the latest version 

Fix #4203 by checking whether a target exists before asking whether i…

Update scratch-render to the latest version 

chore(package): update scratch-vm to version 0.2.0-prerelease.20181226154000

Closes #4198

Fix regex for extracting the project title from a .sb file

Update scratch-vm to the latest version 

Update scratch-vm to pull in changes from scratch-sb1-converter

Update to storage 1.2.2 for clean asset flag fix

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

Update scratch-blocks to the latest version 

chore(package): update scratch-l10n to version 3.1.20181220222259

Removes the three languages from the menu that still need to be reviewed

chore(package): update scratch-vm to version 0.2.0-prerelease.20181221030743

Closes #4174

translate form validation string

Add telemetry opt-in/opt-out dialog

Closes #4173

More library updates