Update users lang file

I have fixed the wrong keys of the language array for italian translation
Merge pull request #3039 from ChristianGiupponi/patch-3

Update users lang file
Runtime cache streams by id
Merge pull request #3052 from obrignoni/2.3/cache-stream-by-id

Runtime cache streams by id
Fixing a quick bug
Merge branch 'refs/heads/2.3/develop' into 3.0/develop