This fixes and issue where the change_stream_privacy template had its
own duplicate copy of the data-stream-name attribute, which wasn't
updated when streams were renamed.
Fixes#2016.
Inputs are given a tabindex of -1 in the handlebars templates, this is
added and removed in the show and hide events of the bootstrap collapse.
(imported from commit 2c54c39edc396d3d18330df4583d901690dd71fa)
This is the UI piece that finishes the features to let admins
make streams private or public.
(imported from commit 1a193165a6304dc358982e9850a75965fb3a03fd)