chore(package): update scratch-vm to version 0.2.0-prerelease.20181011142759
chore(package): update scratch-vm to version 0.2.0-prerelease.20181011142759

Closes #3338
LLK/scratch-gui,cwillisf/scratch-gui,LLK/scratch-gui,cwillisf/scratch-gui,cwillisf/scratch-gui