update scratch-l10n to latest

dispatch projectChange redux action when project has not changed

use Collator.compare in place of localeCompare

chore(package): update scratch-vm to latest version

Exclude greenkeeper builds from gh-pages

They take up so much space and time, but aren't really looked at very much

Add vernier module to webpack config

Closes #4678

Update scratch-vm to the latest version 

Update scratch-paint to the latest version 

Update scratch-vm to the latest version 

Dispatching a message through redux makes it reconsider all currently
listening components. Dispatching for each block, while loading, can
mean dispatching and reconsidering thousands of times if not more.
While dispatching is pretty quick doing this for every block ends up
taking a lot of time.

Update scratch-vm to the latest version 

chore(package): update scratch-vm to version 0.2.0-prerelease.2019031…

Closes #4662

Refactor extensions library index file

Move project saving to server to helper, allow external save action

Since this is in a promise chain, it doesn't matter if onUpdateProjectData returns a promise or a primitive, it'll work either way

chore(package): update scratch-blocks to version 0.1.0-prerelease.155…

Update scratch-vm to the latest version 

Set static asset path (publicPath) with environment var