FIX: [stereoscopic] fix 3D support for libstagefright and ios
[ADDONS|SECURITY] Ensure our zip hasn't been tampered with before rollback.
Merge pull request #3872 from t-nelson/harden_addon_rollback

[ADDONS|SECURITY] Ensure our zip hasn't been tampered with before rollback
Merge pull request #3887 from koying/fix3droidios

FIX: [stereoscopic] fix 3D support for libstagefright and ios
changed: don't start the screen saver when minimized. Prevents the start of the ss when maximizing and an endless loop with some ss.