Such entries should stay in the global .gitignore file.
Let me know what do you think.
Remove platform/editor/app specific entries from .gitignore.
Use .gitignore_global to configure such entries.
This pull request fails (merged 315a86a into 0113e21).
I'm fine with this, though we'll need to be vigilante that no one accidentally commits files that were caught by the projects .gitignore previously.
@weppos I say merge it and see where the cards fall. Worse case, we eventually revert the commit. More likely we help educate the public (and ourselves) from time to time on the need for a global .gitignore for our editors, etc.