Remove old smart-auto-complete submodule. Check in latest version from upstream repo (as local files). Point Brackets at new version. NOTE that this commit breaks Quick Open, but I wanted to keep this commit at the exact version from the original repo--the next commit will fix Quick Open.
Change keydown back to keyup in smart autocomplete to fix Quick Open
QuickOpen: Don't trigger item focus on hover--just show a hover highlight via CSS
Merge pull request #5872 from adobe/nj/issue-4791

QuickOpen: Don't trigger item focus on hover