* Doesn't pop up the warning until you actually try to send the message
* Eliminates the red warning.
* Changes confirm text to "Yes, send".
* Adds a stream size threshhold of 15 people; smaller streams don't
prompt about this.
Fixes#2257.
* In most cases, eslint --fix with the right comma-dangle settings was
able to update the code correctly.
* The exceptions were cases where the parser incorrectly treated the
arguments to functions as lists/objects and added commas; these are
detectable with linters, and we fixed manually. Since this is test
code, we can be reasonably confident that just fixing the failures
suffices to correct any bugs introduced by making changes
automatically.
Sanskar Modi
Tim Abbott
Steve Howell
Vishnu Ks