I apparently screwed up my check for whether we were using the old
data-name field, and switching the other stuff to use data-id (which
is needed for the color stuff) is probably not worth it.
(imported from commit 1b925bbcca5beb5dc9dadbcf703cbb07ca511a0c)
It's not as clear as it could be which stream you clicked on from the
location of the popovers, so it's worth making the popover clear about
which stream you're modifying.
(imported from commit 289b2e70eab582f4ec12d62410e095fd632f6582)