This is an issue where in jQuery v3 the result of outerHeight on a node
that doesn’t exist is now “undefined” rather than “null”, which means
it will no longer cast to a Number but rather NaN. For this, we create
the safeOuterHeight and safeOuterWidth functions to safely return a
result (or 0).
This is a better solution than manually going to each instance and
ORing it with 0 for type safety.
https://stackoverflow.com/questions/41454285/jquery-outerheight-returns-
undefined-instead-of-null
Force display of the top-most recipient_bar's recipient_row_date
when the floating_recipient_bar is just about to overlap and
becomes hidden while user is scrolling.
Fixes#4844.
We now have specific HTML/CSS classes for message fading and
user fading. They currently both have the same effect, changing
opacity, but we can now more easily treat them differently.
This change also removes "faded" attributes in compose-fade,
which avoids some confusion related to landing pages having
a "faded" class as well.
Brock Whittaker
David Coleman
Steve Howell
Rafid Aslam
AZtheAsian
Tommy Ip
Steve Howell