Using select2Input instead of fileInput has advantages. This works. (No search ability yet.)
Replaced printFunctionBody in aaa.R
Initial shiny.trace is FALSE.
Trivial format changes.
Added JS includes for DataTables
Converted Var search to datatables. We can pick up the click event and get info.
OK, now we have the clicked cell info for the datatable.
radioButtons to select and load variable-- works!
First crack at insert editing.
changed name from jstree1 to jstreeScenario throughout
More for editing inserts. Suddenly the main tree display is messed up.  Better branch.
Bug fixes for dumb bugs.
Dumb bug fixes.
Renamed the editing flags and added labels to observers.
These includeSCript calls caused problem-- the entire jsTree was selected.
Fixed treeObserver so that switching tabs works ok.
Catch up linked file with server.R
resetting openingVariableEditor to FALSE. Not clear whether necessary.
Bumped version.
Basic outlines of insert editing. Little of it works yet, but it all parses and doesn't break.