fix function call and error message
fix error when augmenting notebook with no history
catch the closer

fixes #899
i don't like the look of the closer on top of the comments
but it's time to get something - anything - working
seemed like it was a matter of wrapping in another div

in addition, don't change column widths on a size-changed event
do a save-all before renaming asset

fixes #956
we were losing unsaved asset changes

also fix an event namespace that was resulting in event handler not being removed
restore using full path when editing a notebook name

fixes #930
looks like `full_name` doesn't work for versions, but is
necessary for notebooks.  so great, another special case.