Updated by ALF automation.
Merge pull request #4436 from adobe/alf

ALF Automation
fix issue 4238- 'Save As on file in working set does not preserve working set order'
update tern and acorn to latest master
clean up from review
Push update/remove management into ExtensionManager
Update expected results, as Tern now gives us better results than what the test was expecting.
Removes methods that simply delegate to ExtensionManager
Updated by ALF automation.
Incomplete: pulling the update/remove action into the Dialog.

The tests have not yet matched the refactoring, but the idea is
to have the extension manager dialog trigger the update/remove
functionality, rather than the individual views.
Merge remote-tracking branch 'upstream/master' into livehighlight
Review fixes https://github.com/adobe/brackets/pull/4382
Changed the name to live preview highlight
per pull request review, updating comments and correcting conditionals
per pull request review, added code to suppress the initial removal of the item from the working set, thereby reducing the flicker otherwise caused by two redraws of the working set list
Added missing file extensions for C# web dev
Merge pull request #4439 from eztierney/tern-investigation

Update tern & acorn
per pull request review, pushing 'suppressRedraw' flag into the WorkingSetView handler
Untitled document support using InaccessibleFileEntry objects.
Merge pull request #4443 from adobe/untitled-documents

Untitled document support