Sorry @carljbowman

Mostly to remove the repeated props

We have actual menu items now so the things that were menu items should be considered menu bar items

They open and close what more do you want?

Add more information to error boundary messages

The error message is included in the first line of the stack

While working on the menubar, I couldn't find the source of an error. This adds more stack info to the error messages emitted by the error boundary.

Update default project with new more compact serialization.

Add costume size/sound length details to sprite tile and update styling

Update scratch-paint to the latest version 

Fixing issue #1753

Update VM manually in package json

Remove camera upload options from sprite and backdrop selectors.

Fixes for load button issues.

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

chore(package): update scratch-blocks to version 0.1.0-prerelease.152…

Phase 1 - Audit/Update GUI Colors

Closes #1746

Closes #1737

Updates include modifications to interaction states for the following: tabs, add menus, forms, and stage selector.

- Auditing color CSS and componet CSS to make consistent.
- Made a first pass of changes to increase contrast to elements that previously were problematic

Remove toString call in the project-loader.

Fix handleExtensionAdded when no targets present

Manually fire tab change events onclick to fix touching tabs not working