The VM refreshWorkspace will eventually lead back to onWorkspaceUpdate,
which will call refreshSelection itself.

This reverts commit 5b9e8aa0, reversing
changes made to 4cb65dc5.

To prevent loading scratch-blocks default toolbox

Also, delete `static-blocks.xml` which shouldn't have been added in the
first place.

This shouldn't be required.

With jscodeshift thank God

Attaching the storage module in `vmListenerHOC` means it can propagate
down to the GUI, stage, and blocks naturally. The default VM property
value has been removed from those places so that we're not instantiating
extra VM instances any more. Instead, using one of those components
outside of the `vmListenerHOC` framework will require providing a VM
instance as a property.

Resolves #16

/ht @rschamp