Strip nbsp to fix serializing svg on safari

* Add test for Scratch Link unavailable error modal

* update vm

define login dropdown messages, so www component will render with readable text

removed save and save copy from beta; better menu section style handling

Fixes Close button overlap issue

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

Add basic "show more" pagination for the backpack

added simple spinner component

* Use target id in volume reporter block

* update VM

Fix problem with updating cloud vars to zero.

when user clickes File->New, only save if user can save

Closes #3633

chore(package): update scratch-blocks to version 0.1.0-prerelease.154…

Added a unit test and covered the other case (not used) where you might be trying to update the index zero of a list

Closes #3646

Revert "Blur language select focus when mouse leaves"

Add pointer-events:none to sprite img to prevent dragging.

don't require onActivatedBlocksTab prop in TargetPane container

Fix dropdowns on backpack items being transparent

The blend-mode property was being set on the whole thing, rather than the image only

draggable=false is not enough for firefox

correct wrong assetId prop name

Add reconnect button to hardware disconnect alerts