* Fix poll() callback changes in recent commit, note that these have
to work with pinned context too.
* Hide header for context panels in py layout.
* Don't jump back when collapsing a panel, allow the view to be
over some empty space until you scroll back.
* Fix follow context icon, order had to be reversed in icon file.
* ID template now has icon as part of browse button instead of
outside the buttons.
d091856486