Merge pull request tinode#790 from Babkal/patch-1

Update translations.md

Merge pull request tinode#787 from tinode/deadlock

Remove deadlock on server overload, tinode#786

Merge pull request tinode#781 from Abirdcfly/next

delete minor unreachable code caused by t.Fatal

fix grpc version in chatbot

Merge branch 'devel'

Merge pull request tinode#767 from shmutalov/patch-5

Typos

Merge branch 'devel' into next

typo null -> nil

fix for tinode#761

updated a couple of todos