Update v437751 Test

  1. Change the build number prefix for the new update to "CS".
  2. Add a "Default to Cloud" option in game options, and a Save To Cloud setting per colony.
  3. Choosing "Sync ALL to cloud/local" will also update the default.
  4. Updated art on the migration screen.
  5. Don’t log a warning if a colony is missing its matching .png.
  6. Force a refresh of the "Resume Game" button after migrating and changing sync settings for a save.
  7. Migration screen will now show the first error encountered to help diagnose problems.