Merge branch 'hotfix/1.1.2'
remove superfluous debug in python eval that breaks in multi-user setting
restore rest of @sujitbehera27's fix for firefox

sorry, i didn't think these lines were doing anything
add pager to search height calculation

helps not scrolling short searches on firefox
remove margin-bottom from search scroller

@sujitbehera27, thanks, it's great to figure out exactly what made it work
only calc panel width if a collapse is changing something

to stop simple updates from moving columns around, fixes #847

when collapsing or uncollapsing, see if the panel is already
collapsed.  do not save the setting, and do not do change
column width, if there is no change.
add rcloud.config.get.alluser.option

for fetching system-wide options from RCS
generalize friend-tree duplication and add featured notebooks

closes #1012
also load_tree was full of all this promisified code that
didn't need to be. back to just generating a tree after
fetching all the data and options!
update featured users tree too
do not show featured users if there aren't any

and don't crash!
this fixes #1001 : adding tags while updating a notebook
Merge pull request #1023 from GanapatiBhat/shiny_html

Fix for d3 library issue
Merge pull request #1027 from amol-jore/issue-1001-qa

this fixes #1001 : adding tags while updating a notebook
make the session pane just the slightest bit yellow

i don't know why, but logs need background colors
fix distracting contenteditable flash when clicking asset tabs

fixes #867
make ui_utils.editable use an event namespace so it doesn't delete others' events
make the tabs editable only when they are selected
restore negative margin (!!!) which somehow helps search height

i am really not happy about this.
remove contenteditable on correct last element

fixes #991
the earlier fix re-applying contenteditable to recreated elements
broke the removing of contenteditable!
also, remove contenteditable instead of setting false, for clarity
evaluate View expression in correct environment

fixes #1017
remove any previous workspace on loading the viewer

this fixes #997 in a stupid and unsatisfying way
fix botched refactor of tag versioning

many names mismatched :-(
caught and fixed just in time for the release :-)