Local Variables

This is not yet implemented in the VM, but will be needed when it is.

Update default values for GT, LT, EQ operators to be 50

Prevent tab and label wrapping

chore(package): update scratch-blocks to version 0.1.0-prerelease.153…

Closes #2552

Update scratch-paint to the latest version 

Allow specifying variables as local vs. global. Pass var names from VM to scratch-blocks for checking for conflicts in all sprites when attempting to create a global var.

Remove duplicate scratch-* dependencies

How did these get here?

Update scratch-paint to the latest version 

chore(package): update scratch-paint to version 0.2.0-prerelease.2018…

Closes #2536

Backpack Step 6: Sprites!

Update scratch-l10n to the latest version 

Fixes #2448 (tab wrapping in Japanese). Also ensures that none of the Sprite info area wraps. Does not address the issue where the sprite info area is too big and pushes the stage info off the screen.

that I accidentally removed