Remember 1:1 preview mode enabled/disable state
Disabled changing scene collections in settings.

Disabled changing, adding , renaming, and removing scene collections in
Settings General while streaming.
Update CrowdIn script to use new folder structure
Allow recording even when SaveToFile is disabled

This changes the semantics of SaveToFile from "disable all file output
when disabled" to "automatically save stream to file when enabled",
which allows the "Start Recording" button to be enabled even when
SaveToFile is disabled.

Having the "Start Recording" button enabled now depends on having a
non-empty SavePath
Merge pull request #343 from dodgepong/latest-crowdin-translations

Update CrowdIn script to use new folder structure
Merge pull request #342 from Glought/master

Disabled changing Scene Collections in Settings:General while streaming.