Set VM's cloud provider to null when disconnecting from the cloud server. Add unit test for disconnecting on unmount.

Add test for ensuring that cloud connection does not happen just because of a project id change. isShowingWithId must also be true.

Fix issue where regular cloud variable messages were throwing uncaught Json parse errors because of a newline being at the end of the message. Add test that fails without the bugfix.

Uses randomized duration between [0, 2^k-1] where k is the connection attempt number, maxed out at 5.

I had to rework the tests quite a bit to make this easy to test, to work around the timeouts and the randomization.

* Add test for Scratch Link unavailable error modal

* update vm

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

I forgot that the integration test needs to try clicking, because finding text will find invisible text as well

This prevents a tutorial with no urlId being returned in the case of no tutorial query param

Nice catch @kchadha!

made remixing, saving as copy states; made project state naming more consistent

changed meaning of canCreateNew to true creation

fixed project-saver-hoc test

removed Remix option from standalone player menu; renamed canSaveAsCopy to canCreateCopy

added parenthesis missing from rebase

fixed create new test

* Add a space after ‘apple’ in the join block

* Fix integration test