Listen to the new project changed event from the VM and keep track of the state in Redux.  Update it as appropriate.

Known issue is that the project is marked as "changed" immediately after it's loaded. This is due to asynchronous event emitting while the project data is loaded, and needs an update to the VM to fix.

This will work better if there are other query string options that need to be handled later. It also handles the distinction between ‘all’ and the other tutorials better.

The use of an "override" prop that allowed the preview modal to be hidden without actually changing the redux state was causing a problem where the block editors where not closing when modals were opening. That is because it relied on the modal reducer being accurate.

I defaulted the preview state to false to make it simpler to consume the GUI, as www will not want the preview info to be true. I made it true in the playground instead.

This fixes https://github.com/LLK/scratch-gui/issues/3710

Adds `?tutorial=all` as a recognized option. Gui opens without the preview modal, and with the Tutorials Library open.

Back button in the Tutorials Library takes you to the Editor (not back to referrer).

made alert messages translation-ready
updated project saver hoc
default alerts to COLOR_ORANGE

got tests working

made neutral button color

Fixes the issue where the default project reloads when the locale changes.

Why is SET_PROJECT_ID getting dispatched on locale change?

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

* Connection Modal loads its own data

* Connection does not update flyout status buttons

* WIP moving connection modal into redux

* Lint fix and remove unused prop

* Close modal even if exception on disconnect

This is taking advantage of the fact that react-intl can support nested IntlProviders. GUI will use it’s own ConnectedIntlProvider, that maintains the translations in redux, while www will continue to have it’s own IntlProvider that is initialized when the page loads.

Moving the IntlProvider into GUI meant that nothing in the playground can use injectIntl, so the default project name needed to move into the component instead of being in the reducer.

The Localization HOC is added, it takes an optional onSetLanguage handler, so www can pass a function that will set the cookie that www needs.

responding to canSave without needing canSaveNew prop
removed canSaveNew
added default for onUpdateProjectId
removed conflict files erroneously added
don't pass down onError
got tests passing
better creating and saving logic and names

Also added jsdoc to locale-utils

stripped title handling from sb file uploader
updated more projectState related names
simplified hash-parser-hoc logic slightly