Change category name from "Data" to "Variables"

Change modal title to "Make a Block"

Change "More" category to "My Blocks.

Update scratch-audio to the latest version 

Merge pull request #1088 from LLK/greenkeeper/scratch-vm-0.1.0-prerelease.1513799362-prerelease.1513799374

Update scratch-vm to the latest version 

Iteration 2 of sound editor design

* Implement GH-830: Add coming soon tooltips

This implements coming soon tooltips for:
* the small stage size
* save, load and language

It also creates the component that can be copied over into the paint editor for use there as well.

Lastly, this does a small refactor on the full screen implementation to include multiple small screen sizes too.

Update to most recent paint editor release

Merge pull request #1085 from LLK/greenkeeper/scratch-vm-0.1.0-prerelease.1513789849-prerelease.1513789862

Update scratch-vm to the latest version 

Update react-modal to the latest version 

Merge pull request #1078 from LLK/greenkeeper/scratch-vm-0.1.0-prerelease.1513719220-prerelease.1513719234

chore(package): update scratch-vm to version 0.1.0-prerelease.1513719…

Disable the 'collapse' option in the blocks workspace

- New icons
- Play button moved to prominent location
- Styling normalized with costume editor

chore(package): update scratch-blocks to version 0.1.0-prerelease.151…

Closes #1073

Closes #1076

Update paint dependency to get hotfix for eyedropper

Fix touch actions on the stage

Lock scratch-* dependencies to their current versions

Update chromedriver to the latest version 

Update file-loader to the latest version 

Fix backdrop library 

Show newly added assets after they are loaded